# Name Parties Matches
Manifesto Project 19 19
ParlGov 50 50
Wikipedia 57 57
CHES 13 13
CLEA 48 48
EJPR PDY 13 13
CHISOLS 14 14
DPI 8 8
Huber / Inglehart (1995) 7 7
Kitschelt (2013) 7 7
PolCon 22 22
PPMD (2006) 10 10
World Values Survey 9 9
CCS 8 8
CSES 12 12
ERDDA (2013) 18 18
euandi (GPS) 13 13
Global Elections DB 10 10
IPOD 13 13
Janda (1980) 3 3
Jennings / Wlezien 8 8
KUREP (2012) 6 6
Laver / Hunt 5 5
Mackie / Rose (1991) 51 51
MAPP 16 16
Morgan (1976) 10 10
Mudde (2007) 3 3
ParlSpeech 8 8
PIP 15 15
POPPA 7 7
PPDB (2017) 7 7
Ray (1999) 8 8
The PopuList 2 2
EES 2014 7 7
Thomas (1975) 8 8