# Name Parties Matches
ParlGov 48 48
Manifesto Project 28 28
ERDDA (2013) 28 28
Morgan (1976) 20 20
Mackie / Rose (1991) 37 37
CHES 17 17
EJPR PDY 18 18
Kitschelt (2013) 9 9
KUREP (2012) 11 11
Huber / Inglehart (1995) 9 9
Ray (1999) 13 13
PPMD (2006) 9 9
CLEA 38 38
World Values Survey 11 11
Janda (1980) 6 6
EES 2014 9 9
PolCon 23 23
PPDB (2017) 11 11
CHISOLS 16 16
DPI 11 11
Jennings / Wlezien 12 12
Wikipedia 55 55
Global Elections DB 13 13
ParlSpeech 17 17
Laver / Hunt 10 10
euandi (GPS) 12 12
Elections Global 21 21
EP roll call votes 12 12
IPOD 23 23
MAPP 20 20
CSES-IMD 13 13
CCS 10 10
PIP 26 26
Mudde (2007) 5 5
The PopuList 10 10
V-Party 20 20
POPPA 13 13
TAP 7 7
PPMD (all) 17 17
ESS prtc* 21 21
ESS prtv* 20 20
GPS 2019 10 10