# Name Parties Matches
Manifesto Project 8 8
Wikipedia 50 50
CLEA 11 11
CHISOLS 9 9
DPI 12 12
Huber / Inglehart (1995) 7 7
Kitschelt (2013) 6 6
PolCon 18 18
World Values Survey 5 5
CCS 19 19
Coppedge (1997) 32 32
CSES 12 12
LAEDA 15 15
Latinobarometer 23 23
PPLA (2009) 10 10