| Region | Year | ||||||||||
| Average 1995-2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | |
| Piemonte | 11.2 | 11.8 | 9.9 | 11.7 | n.d. | 12.4 | 11.8 | 13.6 | 13.7 | 13.5 | 13.7 |
| Valle d’Aosta | 14.5 | 14.4 | 13.3 | 14.2 | n.d. | 15 | 16.8 | 13 | 16.5 | 12.7 | 15.5 |
| Lombardia | 13.7 | 13.3 | 12 | 15.2 | n.d. | 13.9 | 15.5 | 15.3 | 13.6 | 14.9 | 16.9 |
| Trentino-Alto Adige | 25.1 | 24.9 | 24.6 | 25.5 | n.d. | 27.7 | 25.7 | 24.9 | 27.5 | 24.6 | 27.1 |
| -Bolzano/Bozen | 28.9 | 25.8 | 26.9 | 27.7 | n.d. | 28.3 | 25.7 | 24.4 | 26.8 | 22.4 | 26.4 |
| -Trento | 21.4 | 24 | 22.4 | 23.5 | n.d. | 27.1 | 25.6 | 25.7 | 28.1 | 26.4 | 27.8 |
| Veneto | 15.5 | 16.8 | 16.7 | 15.9 | n.d. | 17 | 15.6 | 17.6 | 16.7 | 16 | 16.9 |
| Friuli-Venezia Giulia | 13.4 | 14.8 | 12 | 13.6 | n.d. | 13.5 | 14.8 | 13.3 | 15.3 | 13.8 | 16.6 |
| Liguria | 10.1 | 8.8 | 9.7 | 10.7 | n.d. | 9 | 9.7 | 10.6 | 11 | 11.3 | 11.7 |
| Emilia-Romagna | 13.9 | 15.4 | 13 | 13.5 | n.d. | 14.3 | 13.5 | 16.3 | 16.3 | 15.6 | 15.7 |
| Toscana | 14.2 | 17.1 | 13.5 | 15.9 | n.d. | 14 | 13.7 | 16.6 | 12.7 | 14.5 | 15.8 |
| Umbria | 10.2 | 9.9 | 7.8 | 11.3 | n.d. | 9.8 | 12.1 | 9.5 | 12.5 | 11.8 | 10.7 |
| Marche | 9.3 | 9.5 | 8.4 | 10.9 | n.d. | 13.4 | 10.4 | 11.1 | 9.2 | 13.6 | 12.2 |
| Lazio | 6.5 | 6.6 | 7.1 | 6.6 | n.d. | 8.6 | 8.2 | 8.3 | 8.8 | 9 | 10.2 |
| Abruzzo | 6.3 | 7 | 5.8 | 7.7 | n.d. | 9.4 | 6.6 | 8.1 | 8.2 | 8 | 8.3 |
| Molise | 6.7 | 6.9 | 7.6 | 7.5 | n.d. | 6.4 | 6.4 | 8.6 | 9.3 | 7.8 | 9.9 |
| Campania | 5.9 | 7 | 4.4 | 5.9 | n.d. | 6.7 | 5.5 | 6.9 | 6 | 6.5 | 6.5 |
| Puglia | 6.9 | 7.2 | 6.8 | 7.8 | n.d. | 8 | 7 | 7.6 | 7.9 | 7.6 | 7.6 |
| Basilicata | 6.6 | 8.1 | 7.8 | 8.2 | n.d. | 9.6 | 11.5 | 10.4 | 12.1 | 10.5 | 11.7 |
| Calabria | 6.4 | 5.9 | 7 | 5.2 | n.d. | 6.9 | 7.1 | 6.8 | 7.3 | 7.9 | 9.1 |
| Sicilia | 5.4 | 5.7 | 6.5 | 5 | n.d. | 6.3 | 6.4 | 5.4 | 5.7 | 7.5 | 7.4 |
| Sardegna | 10.5 | 11 | 8.8 | 8.7 | n.d. | 9.6 | 10.4 | 11.4 | 11.7 | 10.5 | 12.4 |
| Italia | 10.4 | 11 | 9.9 | 10.9 | n.d. | 11.3 | 11.1 | 11.8 | 11.4 | 11.8 | 12.6 |
| Nord | 13.8 | 14.2 | 12.9 | 14.5 | n.d. | 14.4 | 14.6 | 15.5 | 15 | 15 | 16.2 |
| Nord-Ovest | 12.5 | 12.4 | 11.2 | 13.7 | n.d. | 13 | 13.9 | 14.3 | 13.3 | 14.1 | 15.5 |
| Nord-Est | 15.4 | 16.7 | 15.4 | 15.6 | n.d. | 16.5 | 15.6 | 17.3 | 17.3 | 16.3 | 17.3 |
| Centro | 9.7 | 10.6 | 9.4 | 10.6 | n.d. | 11.1 | 10.6 | 11.4 | 10.4 | 11.6 | 12.3 |
| Centro-Nord | 12.5 | 13.1 | 11.9 | 13.3 | n.d. | 13.4 | 13.4 | 14.3 | 13.6 | 14 | 15 |
| Mezzogiorno | 6.5 | 7 | 6.2 | 6.4 | n.d. | 7.4 | 6.8 | 7.2 | 7.3 | 7.7 | 8 |
| Sud | 6.3 | 7 | 5.8 | 6.7 | n.d. | 7.5 | 6.5 | 7.4 | 7.3 | 7.4 | 7.7 |
| Isole | 6.7 | 7 | 7.1 | 5.9 | n.d. | 7.2 | 7.4 | 6.9 | 7.3 | 8.3 | 8.7 |