English Name
Time
Details from Source
KOP
Manifesto Project
KiIkSiPo
ParlGov
Wikipedia
missing
CHES
CLEA
EcanEnMo
EJPR PDY
Wikipedia tags
ESS prtc*
ESS prtv*
PPMD (2006)
World Values Survey
NA
ERDDA (2013)
EU-NED
MAPP
PIP
MoofEcCiCo
Poll of Polls
KOSP
POPPA
PPMD (all)
EES 2014
added: Feb. 8, 2019, 6 p.m. — updated: March 12, 2021, 11:16 a.m.