| # | Name | Parties | Matches |
|---|---|---|---|
| Manifesto Project | 8 | 8 | |
| PPMD (2006) | 11 | 11 | |
| CLEA | 3 | 3 | |
| World Values Survey | 5 | 5 | |
| PolCon | 2 | 2 | |
| DPI | 9 | 9 | |
| Wikipedia | 11 | 11 | |
| Elections Global | 3 | 3 | |
| CSES-IMD | 11 | 11 | |
| Mudde (2007) | 2 | 2 | |
| V-Party | 7 | 7 | |
| GPD | 1 | 1 | |
| PPMD (all) | 11 | 11 | |
| GPS 2019 | 6 | 6 | |
| WhoGov | 1 | 1 | |
| Leaders Global | 1 | 1 |