English Name
Time
Details from Source
SV
Manifesto Project
ParlGov
Wikipedia
CHES
CLEA
Sove
EJPR PDY
V-Party
Wikipedia tags
CHISOLS
DPI
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
Kitschelt (2013)
PolCon
SoLe
PPMD (2006)
WhoGov
World Values Survey
CCS
CSES-IMD
Elections Global
EU-NED
Global Elections DB
GPS 2019
IPOD
SoLePa
Jennings / Wlezien
PAGED
SFSV
Poll of Polls
POPPA
PPDB (2017)
PPMD (all)
Ray (1999)
The PopuList
Schlager / Weisblatt
EJS 2000
EJS 2010
added: March 7, 2020, 9:05 p.m. — updated: March 12, 2021, 8:10 p.m.