English Name
Time
Details from Source
SPPS
Manifesto Project
PS
ParlGov
SPP
Wikipedia
CHES
CLEA
Pe
EJPR PDY
V-Party
SP P
Wikipedia tags
DPI
ESS prtc*
ESS prtv*
Kitschelt (2013)
PolCon
TrFi
PPMD (2006)
WhoGov
World Values Survey
CCS
CSES-IMD
Elections Global
EPAC (2018)
ERDDA (2013)
FRP
euandi (GPS)
EU-NED
GPS 2019
IPOD
Jennings / Wlezien
PSS
KUREP (2012)
MAPP
SMP
Morgan (1976)
PAGED
PIP
Poll of Polls
POPPA
PPMD (all)
TAP
The PopuList
Ps
EES 2014
PePe
PPEPE (2021)
NPPSI
TF
EJS 2010
added: July 13, 2019, 10:07 p.m. — updated: March 12, 2021, 11:16 a.m.