English Name
Time
Details from Source
PDVU
Manifesto Project
Wikipedia
PaofDeReofUk
Huber / Inglehart (1995)
PDRU
WhoGov
Schlager / Weisblatt
added: July 8, 2018, 7:42 p.m. — updated: March 12, 2021, 11:16 a.m.