Upper houses
| States |
|---|
| Afghanistan |
| South Africa |
| Belarus |
| Belgium |
| Bosnia and Herzegovina |
| Burundi |
| Cameroon |
| Canada |
| Central African Republic |
| Equatorial Guinea |
| Haiti |
| India |
| Ireland |
| Kazakhstan |
| Kenya |
| Lesotho |
| Madagascar |
| Pakistan |
| Paraguay |
| Philippines |
| Rwanda |
| Switzerland |
| Swaziland |
| Vatican |
| 1 to 40 (25) |