# Name Parties Matches
Manifesto Project 18 18
ParlGov 31 31
Wikipedia 28 28
CHES 13 13
CLEA 26 26
EJPR PDY 12 12
CHISOLS 12 12
DPI 9 9
ESS 13 13
Huber / Inglehart (1995) 9 9
Kitschelt (2013) 8 8
PolCon 17 17
PPMD (2006) 10 10
CCS 13 13
CSES 11 11
ERDDA (2013) 20 20
euandi (GPS) 8 8
IPOD 18 18
Janda (1980) 4 4
Jennings / Wlezien 11 11
KUREP (2012) 8 8
Laver / Hunt 13 13
Mackie / Rose (1991) 23 23
MAPP 11 11
Morgan (1976) 9 9
Mudde (2007) 1 1
ParlSpeech 20 20
PIP 18 18
POPPA 10 10
PPDB (2017) 8 8
Ray (1999) 14 14
The PopuList 5 5
EES 2014 7 7