# Name Parties Matches
Manifesto Project 49 49
ParlGov 73 73
Wikipedia 110 110
CHES 41 41
CLEA 47 47
EJPR PDY 36 36
CHISOLS 41 41
DPI 19 19
ESS 27 27
Huber / Inglehart (1995) 10 10
Kitschelt (2013) 9 9
PolCon 27 27
PPMD (2006) 13 13
CCS 11 11
CSES 14 14
EPAC (2018) 19 19
ERDDA (2013) 32 32
euandi (GPS) 11 11
Global Elections DB 28 28
IPOD 38 38
Jennings / Wlezien 4 4
KUREP (2012) 11 11
Laver / Hunt 10 10
Mackie / Rose (1991) 45 45
MAPP 26 26
Morgan (1976) 10 10
Mudde (2007) 5 5
PIP 40 40
POPPA 7 7
PPDB (2017) 5 5
Ray (1999) 17 17
The PopuList 13 13
EES 2014 8 8
Thomas (1975) 5 5