Information on country categories and fees for the year 2023
Information on country categories and fees for the year 2023 [Country Categories 2023]
| Country Category | Constituent Member Fees per Member |
| A – Low-income | 0.40 € |
| B – Lower-middle-income | 0.95 € |
| C – Upper-middle-income | 1.65 € |
| D – High-income | 2.20 € |