English Name
Time
Details from Source
ELAM
Manifesto Project
ParlGov
Wikipedia
CHES
CLEA
NaPeFr
EJPR PDY
ESS prtv*
World Values Survey
UBP
euandi (GPS)
EU-NED
GPS 2019
Poll of Polls
POPPA
TAP
The PopuList
NPPSI
NPF
added: June 9, 2020, 12:28 a.m. — updated: Aug. 19, 2023, 1:52 p.m.