The PopuList 3.0

From project website https://osf.io/2ewkq/wiki/home:

The PopuList offers academics and journalists an overview of populist, far-left and far-right parties in Europe since 1989. The PopuList has been supported by the Amsterdam Institute for Social Science Research, the Amsterdam Centre for European Studies, The Guardian, and the ECPR Standing Group on Extremism and Democracy, and has been used in numerous publications. In September 2023 version 3.0 of The PopuList was launched. It includes data from 1989 until 31 December 2022.