English Name
Time
Details from Source
perc
Manifesto Project
PZZ
ESS prtc*
ESS prtv*
Mudde (2007)
RSA
KPNO
PIP
PoWeUn
Poll of Polls
UED
PZ
The PopuList
PHW 1929
PeUn
UkLaanPePa
added: June 9, 2020, 12:29 a.m. — updated: Aug. 19, 2023, 1:51 p.m.