9. COVID-19 Government Response Tracker (University of Oxford - Blavatnik School of Government) Bookmark Format Series - ongoing
19. Global Burden of Disease Study 2020, Release 1 (GBD 2020 R1) Routine Childhood Vaccination Coverage 1980-2019 Bookmark Format Series - ongoing
24. Governments' Economic Responses to COVID-19 (Econ-Response2covid19) Bookmark Format Series - ongoing
27. Imperial College London YouGov Covid 19 Behaviour Tracker Data Hub Bookmark Format Series - ongoing
37. Measurement of Cross-cutting Cleavages and Other Multidimensional Cleavage Structures Bookmark Format Series - ongoing
42. Polity V: Political Regime Characteristics and Transitions, 1800-2018 Bookmark Format Series - ongoing
46. Third International Mathematics and Science Study: International Curriculum Analysis, 1992-1995 (TIMSS) Bookmark Format Series - ongoing
47. Trends in International Mathematics and Science Study (TIMSS) (1995+) Bookmark Format Series - ongoing
50. United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems (1970+) Bookmark Format Series - ongoing