# Name Parties Matches
Manifesto Project 31 31
ParlGov 36 36
Wikipedia 54 54
CHES 14 14
CLEA 21 21
EJPR PDY 13 13
CHISOLS 14 14
DPI 22 22
ESS prtc* 13 13
ESS prtv* 13 13
Huber / Inglehart (1995) 10 10
Kitschelt (2013) 6 6
PolCon 17 17
PPMD (2006) 7 7
World Values Survey 8 8
CCS 14 14
CSES 25 25
EPAC (2018) 10 10
ERDDA (2013) 19 19
euandi (GPS) 9 9
Global Elections DB 13 13
Jennings / Wlezien 7 7
KUREP (2012) 10 10
MAPP 40 40
Mudde (2007) 2 2
PIP 17 17
POPPA 6 6
TAP 6 6
The PopuList 6 6
EES 2014 3 3