| # | Name | Parties | Matches |
|---|---|---|---|
| Manifesto Project | 15 | 15 | |
| Wikipedia | 21 | 21 | |
| CLEA | 18 | 18 | |
| V-Party | 20 | 20 | |
| CHISOLS | 1 | 1 | |
| DPI | 16 | 16 | |
| Kitschelt (2013) | 6 | 6 | |
| PolCon | 14 | 14 | |
| PPMD (2006) | 8 | 8 | |
| World Values Survey | 4 | 4 | |
| Elections Global | 19 | 19 | |
| EPAC (2018) | 6 | 6 | |
| Global Elections DB | 9 | 9 | |
| KUREP (2012) | 7 | 7 |