| 2012 | 2015 | 2018 | |
|---|---|---|---|
| Baden-Württemberg | 29 | 71 | 114 |
| Bayern | 96 | 89 | 43 |
| Berlin | 11 | 29 | |
| Brandenburg | 30 | 40 | 47 |
| Hamburg | 11 | 7 | |
| Hessen | 36 | 39 | 20 |
| Mecklenburg-Vorpommern | 14 | 9 | |
| Niedersachsen | 20 | 123 | |
| Nordrhein-Westfalen | 36 | 60 | 99 |
| Rheinland-Pfalz | 45 | 39 | 17 |
| Saarland | 25 | ||
| Sachsen | 15 | 40 | 17 |
| Sachsen-Anhalt | 7 | 31 | 10 |
| Schleswig-Holstein | 7 | 7 | 19 |
| Thüringen | 14 | 13 | 13 |