| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | |
|---|---|---|---|---|---|---|
| Uusimaa | 162 | 653 | 638 | 688 | 634 | 636 |
| Pirkanmaa | 52 | 260 | 274 | 232 | 208 | 200 |
| Pohjois-Pohjanmaa | 38 | 146 | 116 | 138 | 137 | 131 |
| Varsinais-Suomi | 48 | 149 | 120 | 68 | 92 | 103 |
| Pohjanmaa | 5 | 26 | 30 | 49 | 57 | 58 |
| Etelä-Karjala | 4 | 11 | 11 | 26 | 28 | 36 |
| Keski-Suomi | 32 | 43 | 25 | 30 | 36 | 28 |
| Kanta-Häme | 5 | 12 | 22 | 23 | 24 | 23 |
| Päijät-Häme | 12 | 21 | 18 | 26 | 16 | 20 |
| Pohjois-Savo | 9 | 14 | 26 | 20 | 20 | 18 |
| Satakunta | 13 | 36 | 17 | 17 | 18 | 17 |
| Kymenlaakso | 23 | 16 | 14 | 14 | 10 | 13 |
| Etelä-Savo | 10 | 9 | 2 | 12 | 11 | 12 |
| Etelä-Pohjanmaa | 4 | 5 | 4 | 11 | 10 | 7 |
| Lappi | 1 | 8 | 5 | 7 | 6 | 6 |
| Pohjois-Karjala | 5 | 9 | 9 | 11 | 10 | 4 |
| Kainuu | 6 | 4 | 1 | 2 | 4 | |
| Ahvenanmaa | 4 | 0 | 1 | 6 | 3 | |
| Keski-Pohjanmaa | 1 | 4 | 4 | 3 | 1 | 1 |