English Name
Time
Details from Source
Rep
ParlGov
Wikipedia
REP
CHES
EJPR PDY
Wikipedia tags
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
PPMD (2006)
World Values Survey
EP roll call votes
EU-NED
MAPP
Mudde (2007)
PPMD (all)
Ray (1999)
TAP
PPEPE (2021)
NPPSI
TR
EJS 2000
EJS 2010
DR
added: Feb. 8, 2019, 6 p.m. — updated: March 12, 2021, 11:16 a.m.