# Name Parties Matches
ParlGov 31 31
Manifesto Project 18 18
ERDDA (2013) 20 20
Morgan (1976) 9 9
Mackie / Rose (1991) 23 23
CHES 15 15
EJPR PDY 12 12
Kitschelt (2013) 8 8
KUREP (2012) 8 8
Huber / Inglehart (1995) 9 9
Ray (1999) 14 14
PPMD (2006) 10 10
CLEA 26 26
Janda (1980) 4 4
EES 2014 7 7
PolCon 17 17
PPDB (2017) 8 8
CHISOLS 12 12
DPI 9 9
Jennings / Wlezien 11 11
Wikipedia 29 29
ParlSpeech 20 20
Laver / Hunt 13 13
euandi (GPS) 8 8
Elections Global 15 15
EP roll call votes 10 10
IPOD 18 18
MAPP 11 11
CSES-IMD 11 11
CCS 13 13
PIP 18 18
Mudde (2007) 1 1
The PopuList 5 5
V-Party 15 15
POPPA 10 10
TAP 8 8
PPMD (all) 16 16
ESS prtc* 12 12
ESS prtv* 12 12
GPS 2019 10 10
Leaders Global 5 5
PPEPE (2021) 2 2
CCDD 2018 10 10