# Name Parties Matches
Manifesto Project 29 29
Wikipedia 30 30
CHES 8 8
CLEA 10 10
CHISOLS 2 2
PolCon 5 5
World Values Survey 10 10
CCS 18 18
CSES 5 5
EPAC (2018) 15 15
Parties-PostYug 21 21