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Finding Data: Data on Multinational/Crossnational


  • "Source Indexes to Statistics"
    Indexes to sources of statistics from the United States government, states, Canada, intergovernmental and nongovernmental agencies, and private organizations and associations. Includes "Proquest Statistical Insight", "Tablebase", and "Canadian Research Index".

  • 10 Million International Dyadic Events
    News report events related to political retaliation, world news, economic change, and catastrophes from 1990-2004.

    10 Million International Dyadic Events (Electronic File)
    Principal investigator: Gary King and Will Lowe.

  • Basic Sources of International Economic Statistics
    Guide to international economic macrodata available at Princeton University.

  • Child Mortality Estimates
    Child mortality summary statistics over time.

  • Comparative Study of Electoral Systems (CSES)
    Collaborative program of cross-national research among election studies conducted in over fifty states. The CSES is composed of three tightly linked parts: First, a common module of public opinion survey questions is included in each participant country's post-election study. These "micro" level data include vote choice, candidate and party evaluations, current and retrospective economic evaluations, evaluation of the electoral system itself, in addition to standardized sociodemographic measures. Second, district level data are reported for each respondent, including electoral returns, turnout, and the number of candidates. Finally, system or "macro" level data report aggregate electoral returns, electoral rules and formulas, and regime characteristics.

    Covers the United States as well as a number of European democracies, some in Latin America and the Caribbean, and Asia.

  • Complex Emergency Database (CE-DAT)
    Database of mortality and malnutrition rates - the most commonly used public health indicators of the severity of a humanitarian crisis. Subnational data is included for some countries.

  • Coups d'Etat 1946-2014
    Event list includes successful, attempted, plotted, and alleged coup events reported in Keesings Record of World Events (Keesings Online) and other sources; successful coups are cross-referenced to the Polity IV data series to distinguish "adverse regime changes" from "autocratic coups"; also listed in the codebook are cases of leadership change that are not considered coups (e.g., assassinations, ouster by foreign forces, victory by rebel forces).

  • Cross-National Indicators of Liberal Democracy (1950-1990)
    Collection of crossnational measures of political democracy containing over 800 variables for most of the world's independent countries. Political, social, and economic measures are available in the data file, and topics include adult suffrage, civil liberties, political rights, the openness, fairness, and competitiveness of the electoral process, executive and legislative selection and effectiveness, political party legitimacy, political participation, limitations on the executive branch of the government, level of democratization, economic openness, constitutional development, government legitimacy, and the outlook for freedom. A series of variables focuses on freedom and barriers to freedom, including freedom of peaceful assembly and association, mail censorship, women's rights, freedom of information and technology, freedom of political opposition, and freedom of the press. Compulsory membership in state organizations and political parties and compulsory religion in schools are addressed as well.

  • Cross-National Time-Series Data Archive
    Covers economic, social, and political indicators of nations and empires of the world, including countries and empires that no longer exist. Select data goes back to 1815. Not all indicators are available for all countries or in all years (even years in which the country existed). Often referred to as Bank's Cross National Time Series.

  • Data-Planet Statistical Datasets
    Provides easy access to a wide variety of economic, social, political, and marketing indicators.

  • Database of Political Institutions
    Users of the database should cite Thorsten Beck, George Clarke, Alberto Groff, Philip Keefer, and Patrick Walsh, 2001. "New tools in comparative political economy: The Database of Political Institutions." 15:1, 165-176 (September), World Bank Economic Review. Users of the variables Checks or Polarization should cite Philip Keefer and David Stasavage (2003). "The Limits of Delegation: Veto Players, Central Bank Independence and the Credibility of Monetary Policy." American Political Science Review (August).

  • Education Statistics (World Bank)
    Worldwide data on education from national statistical reports, statistical annexes of new publications, and other data sources. Includes public expenditure data.

  • Ethnologue Global Dataset (19th ed.)
    Raw linguistic data used to create the Ethnologue. Note that this dataset does not include commentary, but rather, data fields with simple values that can be submitted to statistical analysis. Consists of 3 files: (1) Language Data: ISO codes, language families, statuses, country counts, centroid points, and more for 7,457 languages. (2) Country Data: Language counts, literacy rates, populations, diversity indices, and more for 237 countries. (3) Language-in-Country Data: 11,177 listings of data specific to a particular language within a particular country where it is used.

  • Ethnologue: Languages of the World
    An encyclopedic reference work cataloging all of the world's 6,909 known living languages. Searchable by country, language size, and language family. Also see Ethnologue Global Dataset (19th ed.).

  • Finding and Using Financial Data at Princeton University
    Guide to financial data sources available at Princeton University.

  • Gender Info
    Summary statistics by gender for a wide variety of topics.

  • Gender, Institutions, and Development Database
    The Social Institutions and Gender Index is an innovative measure of underlying discrimination against women for over 100 countries. While other indices measure gender inequalities in outcomes such as education and employment, the SIGI helps policy-makers and researchers understand what drives these outcomes. The SIGI captures and quantifies discriminatory social institutions - these include among others, early marriage, discriminatory inheritance practices, violence against women, son bias, restrictions on access to public space and restricted access to productive resources. Methodology can be found at the GenderIndex page. The 2009 data is separate.

  • Generations and Gender Surveys
    Panel survey of a nationally representative sample of 18-79 year-old resident population in each participating country with at least 3 panel waves and an interval of 3 years between each wave. Includes a separate contextual database that is organized around central topics closely linked to the program. The variables describe variations of context over time and among regions that are believed to have an impact on the behaviors and relations that constitute the key dependent variables of the survey: fertility, partnership, transition to adulthood, economic activity as well as the intergenerational and gender relations between people expressed e.g. in care relations or the organization of paid and unpaid work. The data include statistical norms, legal norms and regulations, measures of welfare state policies and institutions as well as general economic and cultural indicators. Registration is required.

  • Global CensusInfo
    Implemented by the United Nations Statistics Division to present national census data from countries around the world.

  • Global Financial Inclusion (Global Findex) Database (2011+)
    Measures how people around the world - including the poor, women, and rural residents - manage their day-to-day finances and plan for the future. Expected to be conducted every 3 years. First round included 140 countries.

  • Global Health Observatory (GHO)
    Formerly WHO Statistical Information System (WHOSIS). Some useful datasets available here include:
    • Burden of Disease Project
    • Maternal Mortality
    • Country Estimates of Health Personnel

  • Global Terrorism Database, 1970-1997
    Composed of terrorist events recorded for the entire world from 1970 and 1997. The data were originally collected by the Pinkerton Global Intelligence Service (PGIS). Throughout the data collection period PGIS employed a broad definition of terrorism: the threatened or actual use of illegal force and violence to attain a political, economic, religious, or social goal through fear, coercion, or intimidation. The data include "terrorist groups" identified as specific named groups as well as generic groupings like "rebels" or "student protestors."

  • Gridded Population of the World and the Global Rural-Urban Mapping Project
    Gridded Population of the World, Version Three (GPWv3) is a gridded, or raster, data product that renders global population data at the scale and extent required to demonstrate the spatial relationship of human populations and the environment across the globe.The purpose is to provide a spatially disaggregated population layer that is compatible with data sets from social, economic, and Earth science fields.The gridded data set is constructed from national or subnational input units (usually administrative units) of varying resolutions. The native grid cell resolution is 2.5 arc-minutes, or ~5km at the equator, although aggregates at coarser resolutions are also provided. Separate grids are available for population count and density per grid cell. Population data estimates are provided for 1990, 1995, and 2000, and projected to 2005, 2010, and 2015. The projected grids were produced in collaboration with the United Nations Food and Agriculture Programme (FAO) as Population Count and Density Grid Future Estimates. There is also an extensive map collection that includes population density and sub-national administrative boundary maps (depicting the input units) at country, continental, and global levels. Summary information on the size and number of input unit and sources is available in an Excel spreadsheet.
    Global Rural-Urban Mapping Project, Version One (GRUMPv1) builds on GPW to construct a common geo-referenced framework of urban and rural areas by combining census data with satellite data. GRUMPv1 comprises 3 data products. First, GRUMPv1 provides a higher resolution gridded population data product at 30 arc-seconds, or ~1km at the equator, for 1990, 1995, and 2000. Second, GRUMPv1's urban extents data set delineates urban areas based on NOAA's night-time lights data set and buffered settlement centroids (where night lights are not sufficiently bright). Third, GRUMPv1 provides a points data set of all urban areas with populations of greater than 1,000 persons, which may be downloaded in Excel, CSV, and shapefile formats. As with GPW, there is an extensive map collection depicting the data sets at country, continental, and global levels.

  • High Casualty Terrorist Bombings, 1989-2014
    Case list of bomb attacks on non-combatant (civilian and political) targets by non-state actors resulting in 15 or more deaths.

  • Integrated Postsecondary Education Data System (IPEDS) (1986+)
    System of surveys designed to collect data from all primary providers of postsecondary education. Study components include earned degrees/completions, Fall enrollment, Fall staff, finance statistics, institutional characteristics, and salaries, tenure, and fringe benefits of full-time instructional faculty. See the video for instructions on how to use. Preceded by HEGIS which covered 1965-1986. For comparisons between the Integrated Postsecondary Education Data System, Common Core of Data, Schools and Staffing Survey, and the Private School Universe Survey see the comparison chart. The Delta Cost Project contains longitudinal database derived from IPEDS finance, enrollment, staffing, completions and student aid data for academic years 1986-87 through 2009-10. This is partially contained in an easy to use format in Trends in College Spending (TCS) Online.

  • International Adult Literacy Survey 1994-1998, 2012 (IALS)
    7-country initiative first conducted in the fall of 1994. Its goal: to create comparable literacy profiles across national, linguistic and cultural boundaries. Also offers the world's only source of comparative data on participation in adult education and training. Since then, a 2nd and a 3rd round of data collection were conducted in an additional 16 countries in 1996 and in 1998. In total, includes literacy data pertaining to 23 countries or regions around the world. For 2012 data is available for Canada only. Also known as the Programme for the International Assessment of Adult Competencies - PIAAC.

  • International Comparative Study on the Management, Productivity, and Effectiveness of Research Teams and Institutions (ICSOPRU), 1971-1989
    Aimed to improve the management of research teams and institutions and increase awareness of their responsibility concerning proper application of research results. Concrete objectives were twofold: (1) on the international level, to make widely available comparable facts and experiences concerning the management of research teams and to promote multilateral as well as bilateral cooperation in this field, and (2) on the national level to provide all those concerned (science policy-makers, research managers, scientists, engineers) with substantive information on the state of their national research potential and to encourage them, on the basis of this information compared eventually with similar information from other countries, to take self-corrective actions as needed to improve the level of effectiveness and productivity of the research teams and institutions. 17 countries from Africa, the Arab States, Asia, Europe and Latin America took part. There were 4 stages or rounds of data collection: 6 countries (Austria, Belgium, Finland, Hungary, Poland, Sweden) in Round 1 (February-September 1974), 6 countries (Argentina, Egypt, India, Republic of Korea [South], Poland, Ukrainian S.S.R.) in Round 2 (June 1978-September 1981), 5 countries (Brazil, India, Nigeria, Spain, Ukrainian S.S.R.) in Round 3 (October 1981-November 1985), and 4 countries (China, Ghana, Hungary, Mexico) in Round 4 (May 1985- June 1987). Each round of questionnaires had different items (except for Rounds 2 and 3 which were the same). Round 1 items included general administrative information relevant to the research units answered by the administrator of the unit, scientific information on the research unit and information relevant to the unit's head answered by the head of the unit, individual information answered by scientists and engineers of the unit, individual information answered by technicians of the unit, and external evaluation of the research units from various scientific and administrative perspectives answered by external evaluators. Rounds 2 and 3 included general information about the research unit answered by the head of the unit, information on the respondent and his or her evaluation of the research unit's management, items on productivity and effectiveness answered by head of the unit along with scientists, engineers, and technicians of the unit, EV-rating of the research unit's effectiveness on a series of dimensions dealing with scientific or social criteria and administrative criteria answered by external evaluators. The 4th round of questionnaires included information on the institutional environment of the research unit answered by the head of the institution, general information on the research unit answered by the head of the unit, information on the respondent and his or her evaluation of the research unit's management, items on productivity and effectiveness answered by the head of the unit, scientists, engineers, and technicians.

  • International Crisis Behavior Project (December 22, 1917 - December 31, 2007)
    Contains information on 445 international crises, 35 protracted conflicts, and 1000 crisis actors from the end of World War I through 2007.

  • International Food Policy Research Institute (IFPRI) Datasets
    In collaboration with institutions throughout the world, IFPRI is often involved in the collection of primary data and the compilation and processing of secondary data. The resulting datasets provide a wealth of information at the local (household and community), national, and global levels. Includes geospatial data, household and community-level surveys, institution-level surveys, regional data, and social accounting matrices.

  • International Migration Flows to and from Selected Countries
    Time series data on the flows of international migrants in select countries. Earliest data is 1970. Users should be aware of the problems of comparability underlying existing statistics. DSS has stored the 2005, 2008, and 2015 revisions. For the 2011, 2012, and 2013 revision see the UN site.

  • International Migration Statistics

  • International Military Intervention (1946-2005)
    Updates International Military Intervention (IMI), 1946-1988. This newer study documents 447 intervention events from 1989 to 2005. To ensure consistency across the full 1946-2005 time span, the original coding procedures were followed. The data collection thus "documents all cases of military intervention across international boundaries by regular armed forces of independent states" in the international system). "Military interventions are defined operationally in this collection as the movement of regular troops or forces of one country inside another, in the context of some political issue or dispute". As with the original IMI (OIMI) collection, the 1989-2005 dataset includes information on actor and target states, as well as starting and ending dates. It also includes a categorical variable describing the direction of the intervention, i.e., whether it was launched in support of the target government, in opposition to the target government, or against some third party actor within the target state's borders. The intensity of the military intervention is captured in ordinal variables that document the scale of the actor's involvement, "ranging from minor engagement such as evacuation, to patrols, act of intimidation, and actual firing, shelling or bombing". Casualties that are a direct result of the military intervention are coded as well. A novel aspect of IMI is the inclusion of a series of variables designed to ascertain the motivations or issues that prompted the actor to intervene, including to take sides in a domestic dispute in the target state, to affect target state policy, to protect a socio-ethnic or minority group, to attack rebels in sanctuaries in the target state, to protect economic or resource interests, to intervene for strategic purposes, to lend humanitarian aid, to acquire territory or to dispute its ownership, and to protect its own military/diplomatic interests. The variable, civilian casualties, which complements IMI's information on the casualties suffered by actor and target military personnel has been added. OIMI variables on colonial history, previous intervention, alliance partners, alignment of the target, power size of the intervener, and power size of the target have been deleted.

  • International Religious Freedom Data (2001, 2003, 2005, 2008)
    Contains aggregate measures from U.S. State Department's International Religious Freedom Reports. This coding produced data on 196 different countries and territories but excluded the United States. Also includes 3 indexes calculated from these data: Government Regulation of Religion index, Social Regulation of Religion index, Government Favoritism of Religion index. Part of the Association of Religion Data Archives. 2008 is found separately.

  • International Social Survey Program (ISSP) (1985+)
    For the latest see the site's web page. A listing of modules performed through 2016 as well as plans for 2017 2018 is available (including questionnaires for not-yet-released years). Ongoing program of crossnational collaboration. Develops topical modules dealing with important areas of social science as supplements to regular national surveys. Every survey includes questions about general attitudes toward various social issues such as the legal system, sex, and the economy. Special topics have included the environment, the role of government, social inequality, social support, family and gender issues, work orientation, the impact of religious background, behavior, and beliefs on social and political preferences, and national identity. Participating countries vary for each topical module. Registration is required. 1998-2007 is also available in an easy to use comparative program.

  • Major Episodes of Political Violence, 1946-2014
    Annual, cross-national, time-series data on interstate, societal, and communal warfare magnitude scores (independence, interstate, ethnic, and civil; violence and warfare); also, scores for neighboring countries and regional context

  • Measuring Brain Drain by Gender 1990-2000

  • Memberships in Conventional Intergovernmental Organizations (CIO) 1952-1997
    Country data coded every 5th year, 1952-1997, denotes individual country membership in a) federations of intergovernment organizations; b) universal membership organizations; c) inter-continental membership organizations; and d) regionally-defined membership organizations

  • Migration and Remittances Factbook

  • Millennium Development Goals Indicators
    Official data, definitions, methodologies and sources for the 48 indicators to measure progress towards the Millennium Development Goals.

  • Minorities at Risk (MAR) Project (1945+)
    Tracks 282 politically-active ethnic groups throughout the world -- identifying where they are, what they do, and what happens to them. Focuses specifically on ethnopolitical groups, non-state communal groups that have "political significance" in the contemporary world because of their status and political actions. Political significance is determined by: (1) The group collectively suffers, or benefits from, systematic discriminatory treatment compared to other groups in a society and (2) The group is the basis for political mobilization and collective action in defense or promotion of its self-defined interests.

  • Panel Data on International Migration 1975-2000
    This dataset, a product of the Trade Team - Development Research Group, is part of a larger effort in the group to measure the extent of the brain drain as part of the International Migration and Development Program. It measures international skilled migration for the years 1975-2000. The authors use data from 6 key receiving countries in the OECD: Australia, Canada, France, Germany, the UK and the US.

  • Pew Global Attitudes Project
    Worldwide public opinion surveys that encompasses a broad array of subjects ranging from people's assessments of their own lives to their views about the current state of the world and important issues of the day. Topics have included views of Asian nations of each other, Muslims in Europe, images of the United States, the Iraq War, and foreign policy. Surveys include different nations and topics by year.

  • Political Instability Task Force (PITF) State Failure Problem Set 1955-2014
    Annual data on cases of ethnic war, revolutionary war, adverse regime change, and genocide/politicide (also, consolidated cases of political instability), includes annual indicators of numbers of rebels, area affected, and numbers of deaths.

  • Polity IV: Political Regime Characteristics and Transitions, 1800-2014
    Contains information on and access to the most recent update of the well-known and highly respected Polity data series, originally designed by Ted Robert Gurr. Polity IV contains coded annual information on regime and authority characteristics for all independent states (with greater than 500,000 total population) in the global state system.

  • Polling the Nations
    Compilation of public opinion surveys conducted in the United States and more than 100 other countries. Each record includes the question asked and the responses given, the polling organization responsible for the work, the date the information was released, the sample size, and the groups or areas included in the interview.

  • Population Exposure Estimates in Proximity to Nuclear Power Plants, Locations
    Provides a global data set of point locations and attributes describing nuclear power plants and reactors.

  • Religion and State Constitutions, 1990-2002
    Set of measures that systematically gauge the intersection between government and religion. Examines constitutional clauses that address religion for 169 states on a yearly basis between 1990 and 2002. This constitutes all countries with populations of 250,000 or more, as well as a sampling of smaller states.

  • Terrorism and Preparedness Data Resource Center
    Includes data collected by government agencies, non-governmental organizations, and researchers about the nature of domestic and international terrorism incidents, organizations, perpetrators, and victims; governmental and nongovernmental responses to terror, including primary, secondary, and tertiary interventions; and citizens' attitudes towards terrorism, terror incidents, and the response to terror. It also organizes and streamlines access to extant research and administrative data from across the world that are relevant to the study of terrorism and the response to terrorism for descriptive and scientific analysis by academics and researchers.

  • Transnational Social Movement Organization Dataset, 1953-2003
    Brings new data to the investigation of relationships between globalization, social movements, and political change. Aims to enhance understanding of the organizational foundations for transnational activism, namely the population of transnational social movement organizations. Contains 301 variables. The variables were either taken directly from the Yearbook of International Organizations, or created from information in the Yearbook.

  • Trends in international migrant stock: Migrants by Age and Sex
    Contains time-series of estimates and projections of the number of international migrants by sex, age, and origin for the years 1990, 2000, 2010, and 2013. The 2010 version is stored on the DSS server.

  • UNICEF Global Database on Breastfeeding Indicators

  • United Nations International Study on Firearm Regulation
    Country-level survey dealing with:
    • Firearm regulation, including issues of ownership, possession and use;
    • Manufacturing and trade;
    • Smuggling and other illegal dealings;
    • Demographic, accident and crime statistics;
    • Policy and public education initiatives;

    The survey instrument was distributed to Member States in 1996. The data is in a MS Access database. Data may also be used to compare social attitudes toward guns and gun control among countries.

    Sample Size: 78 countries.

  • United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems
    Collects data on the incidence of reported crime and the operations of criminal justice systems with a view to improving the analysis and dissemination of that information globally. Results provide an overview of trends and interrelationships between various parts of the criminal justice system to promote informed decision-making in administration, nationally and internationally. The surveys were started in 1977, covering 5-year intervals from 1970-1994. Starting in 1995 surveys cover 2 or 3 year intervals. Data may also be accessed through ICPSR.

  • Uppsala Conflict Data Program (UCDP) (1946+)
    Includes both internal and external armed conflicts.

  • Urban and Rural Population by Age and Sex 1950-2005
    Estimates for 175 countries that had more than 300,000 inhabitants in 2005. Estimates are reported every 5 years for 1950-2005, by sex and by 5-year age groups.

  • Voice of the People Series (2005+)
    Annual survey to solicit public opinion on social and political issues. Every year the survey will be conducted in approximately 50 countries, with a minimal sample size of 500 per country. Wherever possible, within each country a nationally representative sample n=500 adults, male and female, aged 18 and older will be used. In some emergent countries, where such research conditions are not possible, there may be stated variations to this (e.g. urban areas only). Similarly, in the developed world interviews will be conducted by telephone, while in emergent and under-developed countries face to face interviews will be conducted. Demographic variables include sex, age, household income, education level, employment status, and religious preference.

  • Women in Parliament, 1945-2003: Cross-National Dataset
    Information on women's inclusion in parliamentary bodies in over 150 countries from 1945 to 2003. Allows for extensive, large-scale, cross-national investigation of the factors that explain women's attainment of political power over time and provides educators with comprehensive international and historical information on women in a variety of political positions. Information is provided on female suffrage, the first female member of parliament, yearly percentages of women in parliaments, when women reached important representational milestones, such as 10 %, 20 %, and 30 % of a legislature, and when women achieved highly-visible political positions, such as prime minister, president, or head of parliament.

  • World Bank Microdata Library
    Portal for all surveys and datasets held in catalogs maintained by the World Bank and a number of contributing external catalogs.

  • World Database of Happiness: States of Nations
    Includes summary information from social surveys indicating levels of happiness in about 95 countries around the world, along with data on possible causal factors. Includes state level measures for the USA.

  • World Development Indicators
    Development indicators from the World Bank. Covers population, education, health, aid, poverty and environmental indicators for 217 countries.

  • World Fertility Data (2006, 2008, 2012, 2015)
    Presents data on age-specific fertility rates, total fertility and mean age at childbearing for 201 countries or areas of the world. Covers the time period from 1950 to the present. Data for the time period before 1950 have been included as well, if readily available, but no systematic attempt was made to collect data prior to 1950 for all countries. 2015 is also found on the UN site.

  • World Handbook of Aging and Social Security Indicators (1950-1980)
    Contains 184 variables prepared by the authors in connection with their comparative study of government support of the aged. The data is focused on indicators relevant to social security (social welfare) programs and to the health and welfare of the aged. Some variables have data on up to 131 nations, although most variables have data on fewer nations, as only a limited number of nations have social security data available.

  • World Income Inequality Database
    The UNU/WIDER World Income Inequality Database (WIID) collects and stores information on income inequality for developed, developing, and transition countries.

  • World Marriage Data (2006, 2008, 2012, 2015)
    Provides comparable data on the marital status of the population by age and sex for 231 countries or areas of the world. Contains data on marital status of men and women, currently married men and women, ever married men and women and singulate mean age at marriage (SMAM). Data are presented from around 1970 to the most recent data available. 2015 is also found on the UN site.

  • World Military Expenditures and Arms Transfers [Trade] Series (1961-1993)
    Worldwide and regional annual totals of military spending.

  • World Mortality Report (2011)
    Includes death rates, infant mortality, under age 5 mortality, life expectancy, and probability of dying between ages 15 and 60. Some data goes back to 1950 with projections to 2015.

  • World Population Prospects
    Comprehensive set of demographic indicators for 1950-2100. Includes measures of fertility, life expectancy, migration, and measures of the impact of HIV/AIDS. Older versions are on the DSS server.

  • World Public
    Program on International Policy Attitudes site providing public opinion from around the world.

  • World Religion Dataset: Global Religion Dataset
    Aims to provide detailed information about religious adherence worldwide since 1945. It contains data about the number of adherents by religion in each of the states in the international system. These numbers are given for every half-decade period (1945, 1950, etc., through 2010). Percentages of the states' populations that practice a given religion are also provided. (Note: These percentages are expressed as decimals, ranging from 0 to 1, where 0 indicates that 0 percent of the population practices a given religion and 1 indicates that 100 percent of the population practices that religion.) Some of the religions (as detailed below) are divided into religious families. To the extent data are available, the breakdown of adherents within a given religion into religious families is also provided. The Global Religion Dataset: This dataset uses a religion-by-five-year unit. It aggregates the number of adherents of a given religion and religious group globally by five-year periods.

  • World Religion Dataset: National Religion Dataset
    Aims to provide detailed information about religious adherence worldwide since 1945. It contains data about the number of adherents by religion in each of the states in the international system. These numbers are given for every half-decade period (1945, 1950, etc., through 2010). Percentages of the states' populations that practice a given religion are also provided. (Note: These percentages are expressed as decimals, ranging from 0 to 1, where 0 indicates that 0 percent of the population practices a given religion and 1 indicates that 100 percent of the population practices that religion.) Some of the religions are divided into religious families. To the extent data are available, the breakdown of adherents within a given religion into religious families is also provided. The National Religion Dataset: The observation in this dataset is a state-five-year unit. This dataset provides information regarding the number of adherents by religions, as well as the percentage of the state's population practicing a given religion.

  • World Religion Dataset: Regional Religion Dataset
    Aims to provide detailed information about religious adherence worldwide since 1945. It contains data about the number of adherents by religion in each of the states in the international system. These numbers are given for every half-decade period (1945, 1950, etc., through 2010). Percentages of the states' populations that practice a given religion are also provided. (Note: These percentages are expressed as decimals, ranging from 0 to 1, where 0 indicates that 0 percent of the population practices a given religion and 1 indicates that 100 percent of the population practices that religion.) Some of the religions (as detailed below) are divided into religious families. To the extent data are available, the breakdown of adherents within a given religion into religious families is also provided. The Regional Religion Dataset: The unit of analysis is the region, measured at five-year intervals. The Correlates of War regional breakdown is used with one modification: the Oceania category is added for Correlates of War nation numbers 900 and above.

  • World Telecommunication/ICT Indicators Database (2015 ed.)
    Contains time series data for 1960, 1965, 1970 and annually from 1975-2014 for around 180 different telecommunication and ICT statistics covering the telecommunication network and ICT uptake, mobile services, quality of service, traffic, staff, tariffs, revenue and investment. Data for over 200 economies are available. For select series more recent data may be available on the ITU website. Also see ITU Historical Statistics with select data from 1849-1967.

This page last updated: October 21, 2009