# Name Parties Matches
Manifesto Project 24 24
ParlGov 30 30
Wikipedia 43 43
CHES 9 9
CLEA 21 21
EJPR PDY 20 20
CHISOLS 25 25
DPI 16 16
ESS 19 19
Huber / Inglehart (1995) 14 14
Kitschelt (2013) 6 6
PolCon 20 20
PPMD (2006) 9 9
World Values Survey 5 5
CCS 10 10
CSES 6 6
EPAC (2018) 7 7
ERDDA (2013) 19 19
euandi (GPS) 7 7
Global Elections DB 21 21
KUREP (2012) 6 6
MAPP 18 18
Mudde (2007) 6 6
PIP 18 18
POPPA 7 7
The PopuList 4 4
EES 2014 5 5