6. COVID-19 Government Response Tracker (University of Oxford - Blavatnik School of Government) Bookmark Format Series - ongoing
13. Governments' Economic Responses to COVID-19 (Econ-Response2covid19) Bookmark Format Series - ongoing
17. Polity V: Political Regime Characteristics and Transitions, 1800-2018 Bookmark Format Series - ongoing
19. United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems (1970+) Bookmark Format Series - ongoing