# Name Parties Matches
Manifesto Project 17 17
ParlGov 43 43
Wikipedia 71 71
CHES 17 17
CLEA 44 44
EJPR PDY 22 22
CHISOLS 34 34
DPI 10 10
ESS 13 13
Kitschelt (2013) 5 5
PolCon 18 18
PPMD (2006) 4 4
CCS 8 8
CSES 10 10
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
The PopuList 11 11
EES 2014 8 8