English Name
Time
Details from Source
PZU
Wikipedia
missing
CLEA
PaofGrofUk
V-Party
Wikipedia tags
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
GPU
WhoGov
World Values Survey
CSES-IMD
Elections Global
KUREP (2012)
added: Jan. 1, 2013, 7:18 p.m. — updated: June 5, 2023, 12:39 p.m.