# Name Parties Matches
Manifesto Project 33 33
ParlGov 43 43
Wikipedia 86 86
CHES 26 26
CLEA 15 15
EJPR PDY 11 11
V-Party 53 53
CHISOLS 32 32
DPI 13 13
ESS prtc* 29 29
ESS prtv* 32 32
Huber / Inglehart (1995) 8 8
Kitschelt (2013) 5 5
PolCon 17 17
PPMD (2006) 5 5
World Values Survey 4 4
CSES-IMD 11 11
Elections Global 50 50
EPAC (2018) 22 22
EP roll call votes 20 20
ERDDA (2013) 13 13
euandi (GPS) 4 4
Global Elections DB 14 14
IPOD 15 15
Jennings / Wlezien 8 8
KUREP (2012) 12 12
Latinobarometer 5 5
Laver / Hunt 9 9
Mackie / Rose (1991) 59 59
MAPP 17 17
Mudde (2007) 4 4
ParlSpeech 18 18
PIP 28 28
POPPA 11 11
PPDB (2017) 5 5
Ray (1999) 16 16
TAP 5 5
The PopuList 11 11
EES 2014 9 9