| Häufigkeitsauszählung |
Arbeitsort Bundesland (ao_bula)
| ao_bula |
Jahr |
| 1985 |
2002 |
2008 |
2020 |
| 1 Schleswig-Holstein | 32,728 | 45,815 | 52,598 | 55,288 |
| 2 Hamburg | 20,586 | 28,732 | 32,791 | 35,035 |
| 3 Niedersachsen | 80,584 | 114,517 | 131,436 | 139,319 |
| 4 Bremen | 7,395 | 9,676 | 10,647 | 10,823 |
| 5 Nordrhein-Westfalen | 177,760 | 254,996 | 297,072 | 313,057 |
| 6 Hessen | 65,004 | 92,005 | 104,776 | 111,922 |
| 7 Rheinland-Pfalz | 44,090 | 62,466 | 72,898 | 75,453 |
| 8 Baden-Wuerttemberg | 118,939 | 165,993 | 188,643 | 199,902 |
| 9 Bayern | 143,846 | 206,898 | 236,967 | 261,242 |
| 10 Saarland | 11,040 | 15,295 | 17,112 | 17,444 |
| 11 Berlin | 22,722 | 47,691 | 53,704 | 60,027 |
| 12 Brandenburg | | 36,870 | 38,582 | 39,640 |
| 13 Mecklenburg-Vorpommern | | 26,474 | 27,503 | 26,944 |
| 14 Sachsen | | 66,061 | 67,660 | 64,171 |
| 15 Sachsen-Anhalt | | 34,238 | 34,645 | 31,909 |
| 16 Thueringen | | 36,158 | 36,259 | 32,798 |
| .z K. Angabe | 39 | 176 | / | / |
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