# Name Parties Matches
Manifesto Project 20 20
Wikipedia 22 22
CHES 12 12
CLEA 15 15
CHISOLS 7 7
DPI 9 9
PolCon 8 8
PPMD (2006) 8 8
World Values Survey 17 17
EPAC (2018) 20 20
Global Elections DB 12 12
Mudde (2007) 4 4
Parties-PostYug 24 24