| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
|---|---|---|---|---|---|---|---|---|
| Piedmont | 1 083 | 1 029 | 829 | 735 | 389 | 416 | 416 | 428 |
| Aosta Valley | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 15 |
| Liguria | 295 | 223 | 210 | 204 | 227 | 193 | 195 | 176 |
| Lombardy | 1 380 | 1 092 | 871 | 873 | 888 | 880 | 868 | 876 |
| Abruzzo | 101 | 97 | 115 | 113 | 114 | 111 | 100 | 104 |
| Molise | 36 | 33 | 29 | 29 | 24 | 23 | 23 | 23 |
| Campania | 436 | 381 | 336 | 487 | 469 | 486 | 478 | 497 |
| Apulia | 190 | 264 | 273 | 260 | 269 | 230 | 224 | 240 |
| Basilicata | 42 | 33 | 29 | 31 | 31 | 30 | 34 | 32 |
| Calabria | 128 | 135 | 140 | 140 | 136 | 135 | 88 | 83 |
| Sicily | 570 | 602 | 571 | 528 | 511 | 506 | 546 | 550 |
| Sardinia | 133 | 119 | 111 | 112 | 106 | 102 | 116 | 108 |