| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|
| Baden-Württemberg | 309 | 221 | 186 | 248 | 230 | 194 | 268 | 174 | 197 |
| Bayern | 2 417 | 1 870 | 1 648 | 2 084 | 1 866 | 1 410 | 1 871 | 1 415 | 1 833 |
| Brandenburg | 366 | 439 | 285 | 357 | 316 | 312 | 421 | 323 | 316 |
| Hessen | 227 | 168 | 171 | 188 | 178 | 164 | 189 | 133 | 137 |
| Mecklenburg-Vorpommern | 640 | 569 | 434 | 473 | 476 | 443 | 479 | 398 | 442 |
| Niedersachsen | 5 979 | 5 524 | 4 590 | 5 251 | 4 803 | 4 405 | 5 046 | 5 099 | 5 048 |
| Nordrhein-Westfalen | 1 585 | 1 367 | 1 472 | 1 620 | 1 331 | 1 496 | 1 660 | 1 454 | 1 457 |
| Rheinland-Pfalz | 368 | 275 | 290 | 326 | 304 | 286 | 285 | 245 | 234 |
| Saarland | 8 | 5 | 5 | 6 | 5 | 4 | 5 | 4 | 3 |
| Sachsen | 316 | 313 | 277 | 330 | 296 | 182 | 339 | 255 | 267 |
| Sachsen-Anhalt | 630 | 563 | 517 | 679 | 579 | 526 | 712 | 584 | 529 |
| Schleswig-Holstein | 212 | 208 | 190 | 185 | 198 | 190 | 237 | 219 | 236 |
| Thüringen | 135 | 103 | 77 | 88 | 83 | 58 | 96 | 68 | 73 |