# Name Parties Matches
Manifesto Project 19 19
ParlGov 41 41
Wikipedia 26 26
CHES 16 16
CLEA 20 20
EJPR PDY 18 18
CHISOLS 11 11
DPI 18 18
ESS 25 25
Kitschelt (2013) 8 8
PolCon 13 13
PPMD (2006) 8 8
World Values Survey 14 14
CSES 13 13
ERDDA (2013) 16 16
euandi (GPS) 9 9
Global Elections DB 16 16
KUREP (2012) 7 7
MAPP 14 14
Mudde (2007) 4 4
Parties-PostYug 21 21
PIP 17 17
POPPA 8 8
The PopuList 6 6
EES 2014 11 11