| 2005 | 2012 | 2015 | |
|---|---|---|---|
| Lombardy | 1.404.885 | 1.434.108 | 1.391.858 |
| Lazio | 883.027 | 942.139 | 972.540 |
| Campania | 751.482 | 827.498 | 820.102 |
| Sicily | 619.969 | 693.425 | 683.146 |
| Veneto | 624.362 | 633.860 | 647.574 |
| Piedmont | 581.219 | 600.418 | 584.051 |
| Emilia-Romagna | 492.663 | 484.124 | 471.052 |
| Tuscany | 446.050 | 425.577 | 426.726 |
| Apulia | 460.548 | 448.166 | 426.653 |
| Calabria | 262.392 | 327.662 | 350.048 |
| Sardinia | 248.511 | 293.175 | 274.999 |
| Liguria | 251.955 | 241.338 | 238.694 |
| Abruzzo | 202.380 | 231.355 | 230.772 |
| Friuli-Venezia Giulia | 181.696 | 204.305 | 195.591 |
| Marches | 160.101 | 164.962 | 167.140 |
| Umbria | 93.065 | 105.473 | 101.978 |
| Basilicata | 84.173 | 70.591 | 97.754 |
| Provincia Autonoma Trento | 83.809 | 85.439 | 95.004 |
| Provincia Autonoma Bolzano / Bozen | 60.311 | 61.474 | 64.804 |
| Molise | 49.109 | 54.329 | 53.491 |
| Aosta Valley | 21.299 | 27.433 | 26.085 |