# Name Parties Matches
Manifesto Project 17 17
ParlGov 42 42
Wikipedia 72 72
CHES 17 17
CLEA 44 44
EJPR PDY 22 22
V-Party 63 63
CHISOLS 34 34
DPI 10 10
ESS prtc* 15 15
ESS prtv* 17 17
Kitschelt (2013) 5 5
PolCon 18 18
PPMD (2006) 4 4
CCS 8 8
CSES-IMD 10 10
Elections Global 60 60
EP roll call votes 8 8
ERDDA (2013) 16 16
euandi (GPS) 12 12
Global Elections DB 29 29
IPOD 10 10
Janda (1980) 4 4
Jennings / Wlezien 9 9
KUREP (2012) 5 5
Laver / Hunt 4 4
Mackie / Rose (1991) 46 46
Mudde (2007) 5 5
PIP 16 16
POPPA 10 10
Ray (1999) 9 9
TAP 9 9
The PopuList 11 11
EES 2014 8 8