# Name Parties Matches
Manifesto Project 42 42
ParlGov 31 31
Wikipedia 50 50
CHES 18 18
CLEA 18 18
EJPR PDY 17 17
CHISOLS 2 2
DPI 12 12
ESS prtc* 11 11
ESS prtv* 11 11
Kitschelt (2013) 10 10
PolCon 6 6
PPMD (2006) 11 11
World Values Survey 9 9
CSES 10 10
EPAC (2018) 16 16
euandi (GPS) 7 7
Global Elections DB 8 8
Jennings / Wlezien 3 3
MAPP 22 22
Mudde (2007) 5 5
Parties-PostYug 20 20
PIP 19 19
POPPA 14 14
TAP 4 4
The PopuList 8 8
EES 2014 8 8