# Name Parties Matches
Manifesto Project 34 34
ParlGov 51 51
Wikipedia 51 51
CHES 17 17
CLEA 23 23
EJPR PDY 27 27
CHISOLS 24 24
DPI 27 27
Kitschelt (2013) 8 8
PolCon 29 29
PPMD (2006) 7 7
World Values Survey 3 3
CSES 8 8
EPAC (2018) 17 17
ERDDA (2013) 21 21
euandi (GPS) 8 8
Global Elections DB 26 26
KUREP (2012) 8 8
Mudde (2007) 1 1
PIP 27 27
The PopuList 7 7
EES 2014 7 7