English Name
Time
Details from Source
SDP
Manifesto Project
SSDP
ParlGov
Wikipedia
CHES
CLEA
Susopu
EJPR PDY
V-Party
Wikipedia tags
CHISOLS
DPI
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
Kitschelt (2013)
PolCon
SoDe
PPMD (2006)
WhoGov
World Values Survey
CCS
CSES-IMD
Elections Global
EPAC (2018)
EP roll call votes
ERDDA (2013)
euandi (GPS)
EU-NED
Global Elections DB
GPD
SoDePa
IPOD
SoDePaofFi
Jennings / Wlezien
KUREP (2012)
Laver / Hunt
Leaders Global
Mackie / Rose (1991)
SuSoPu
MAPP
Morgan (1976)
SOCD
PAGED
PIP
Poll of Polls
POPPA
PPMD (all)
Ray (1999)
SDEM
EES 2014
SuSoPuSD
Schlager / Weisblatt
EJS 2000
EJS 2010
PHW 1929
added: July 16, 2020, 7:39 p.m. — updated: March 12, 2021, 11:16 a.m.