English Name
Time
Details from Source
DVU
NPD
ParlGov
Wikipedia
CLEA
NaPaDe
EJPR PDY
Wikipedia tags
ESS prtc*
ESS prtv*
Kitschelt (2013)
PPMD (2006)
CSES-IMD
euandi (GPS)
EU-NED
Laver / Hunt
Mackie / Rose (1991)
ADF
MAPP
Mudde (2007)
Poll of Polls
PPMD (all)
TAP
PPEPE (2021)
NPPSI
NDPG
GPU
EJS 2000
EJS 2010
added: April 10, 2014, 9:03 p.m. — updated: March 12, 2021, 11:14 a.m.