# Name Parties Matches
Manifesto Project 49 49
ParlGov 73 73
Wikipedia 115 115
CHES 42 42
CLEA 47 47
EJPR PDY 36 36
CHISOLS 41 41
DPI 19 19
ESS prtc* 40 40
ESS prtv* 39 39
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
EP roll call votes 28 28
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
TAP 12 12
The PopuList 13 13
EES 2014 8 8
Thomas (1975) 5 5