| # | Name | Parties | Matches |
|---|---|---|---|
| Manifesto Project | 42 | 42 | |
| CHES | 12 | 12 | |
| Kitschelt (2013) | 6 | 6 | |
| KUREP (2012) | 11 | 11 | |
| Huber / Inglehart (1995) | 13 | 13 | |
| EPAC (2018) | 14 | 14 | |
| PPMD (2006) | 6 | 6 | |
| CLEA | 24 | 24 | |
| World Values Survey | 34 | 34 | |
| PolCon | 8 | 8 | |
| CHISOLS | 1 | 1 | |
| DPI | 17 | 17 | |
| Wikipedia | 46 | 46 | |
| Elections Global | 21 | 21 | |
| CSES-IMD | 21 | 21 | |
| Mudde (2007) | 2 | 2 | |
| V-Party | 25 | 25 | |
| GPD | 6 | 6 | |
| PPMD (all) | 6 | 6 | |
| ESS prtc* | 38 | 38 | |
| ESS prtv* | 41 | 41 | |
| GPS 2019 | 6 | 6 | |
| WhoGov | 29 | 29 | |
| Leaders Global | 11 | 11 | |
| Wikipedia tags | 38 | 38 | |
| Poll of Polls | 2 | 2 |