# Name Parties Matches
Manifesto Project 16 16
ParlGov 21 21
Wikipedia 39 39
CHES 13 13
CLEA 17 17
EJPR PDY 16 16
CHISOLS 14 14
DPI 18 18
ESS 23 23
Huber / Inglehart (1995) 6 6
Kitschelt (2013) 5 5
PolCon 12 12
PPMD (2006) 8 8
World Values Survey 6 6
CCS 8 8
CSES 10 10
ERDDA (2013) 10 10
euandi (GPS) 6 6
Global Elections DB 4 4
Janda (1980) 1 1
Jennings / Wlezien 5 5
KUREP (2012) 6 6
MAPP 11 11
Mudde (2007) 1 1
PIP 12 12
POPPA 7 7
PPDB (2017) 4 4
The PopuList 8 8
EES 2014 3 3