# Name Parties Matches
Manifesto Project 33 33
ParlGov 49 49
Wikipedia 57 57
CHES 21 21
CLEA 32 32
EJPR PDY 36 36
CHISOLS 5 5
DPI 23 23
ESS 25 25
Huber / Inglehart (1995) 7 7
Kitschelt (2013) 6 6
PolCon 21 21
PPMD (2006) 10 10
World Values Survey 8 8
CSES 21 21
EPAC (2018) 8 8
ERDDA (2013) 22 22
euandi (GPS) 8 8
Global Elections DB 24 24
Jennings / Wlezien 5 5
KUREP (2012) 6 6
MAPP 12 12
Mudde (2007) 7 7
PIP 30 30
POPPA 8 8
PPDB (2017) 6 6
The PopuList 15 15
EES 2014 5 5