# Name Parties Matches
Manifesto Project 18 18
ParlGov 25 25
Wikipedia 25 25
CHES 11 11
CLEA 32 32
EJPR PDY 19 19
CHISOLS 6 6
DPI 8 8
ESS prtc* 26 26
ESS prtv* 25 25
Huber / Inglehart (1995) 6 6
Kitschelt (2013) 7 7
PolCon 13 13
PPMD (2006) 10 10
World Values Survey 11 11
CCS 14 14
CSES 14 14
Global Elections DB 9 9
IPOD 12 12
Jennings / Wlezien 8 8
Mackie / Rose (1991) 24 24
MAPP 15 15
Mudde (2007) 5 5
PIP 17 17
POPPA 11 11
Ray (1999) 14 14
TAP 8 8
The PopuList 9 9