English Name
Time
Details from Source
DVU
ParlGov
Wikipedia
CHES
DVU NPD
EJPR PDY
Wikipedia tags
ESS prtv*
NPD
PPMD (2006)
CSES-IMD
Mudde (2007)
PPMD (all)
PPEPE (2021)
NPPSI
GPU
EJS 2000
added: April 28, 2019, 5:59 p.m. — updated: March 12, 2021, 11:16 a.m.