El Salvador
- Armed Conflict Dataset (UCDP/PRIO)
- Centripetal Democratic Governance
- CIRI Human Rights Project - The CIRI Human Rights Dataset
- CNTS - Cross-National Time-Series Data Archive
- Correlates of War
- Democracy Time-series Data
- DESAW - Democratic Electoral Systems Around the World
- DPI - Database of Political Institutions
- Election Resources on the Internet
- EPM - Environmental Performance Index
- EPM - Environmental Sustainability Index
- Fractionalization Data
- Freedom House - Freedom in the World
- Freedom House - Freedom of the Press
- HDR - Human Development Reports
- IDEA - Unified Database
- ILO - Laborsta
- IMF - International Financial Statistics
- IMF - World Economic Outlook
- IPU - Women in National Parliaments
- Migration DRC - Global Migrant Origin Database
- Minorities at Risk - MAR Data
- POLCON - The Political Constraint Index Dataset
- Polity Project - Polity IV
- Polyarchy and Contestation Scales
- Polyarchy Dataset (Vanhanen)
- Psephos (Adam Carr’s Election Archive)
- PTS - Political Terror Scale
- PWT - Penn World Table
- Quality of Government (La Porta et al.)
- Quality of Government Datasets (QoG Institute)
- Reporters sans frontières - Worldwide Press Freedom Index
- The Global Competitiveness Index
- TI - Corruption Perceptions Index
- TI - Global Corruption Barometer
- UNICEF - State of the World’s Children (SOWC)
- WHO - Global Health Observatory
- WIID - WII Database
- World Bank - World Development Indicators/Global Development Finance
- World Christian Database
- Worldwide Governance Indicators