English Name
Time
Details from Source
ED
Manifesto Project
KED
ParlGov
Wikipedia
missing
CLEA
UnDe
EJPR PDY
EDI
ESS prtc*
ESS prtv*
WhoGov
ERDDA (2013)
EU-NED
PIP
FrDeMo
PPMD (all)
NPPSI
UD
added: March 16, 2015, 4:10 p.m. — updated: March 12, 2021, 11:15 a.m.