| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 794 | 21.873,01 | 27,55 | 2 |
| 2007 | 549 | 17.224,97 | 31,38 | 1 |
| 2008 | 524 | 22.040,91 | 42,06 | 1 |
| 2009 | 488 | 20.521,76 | 42,05 | 2 |
| 2010 | 582 | 18.423,80 | 31,66 | 2 |
| 2011 | 508 | 18.503,13 | 36,42 | 1 |
| 2012 | 480 | 17.763,51 | 37,01 | 2 |
| 2013 | 528 | 18.485,29 | 35,01 | 2 |
| 2014 | 467 | 19.221,77 | 41,16 | 2 |
| 2015 | 443 | 19.658,35 | 44,38 | 2 |
| 2016 | 390 | 16.773,41 | 43,01 | 2 |
| 2017 | 347 | 14.255,95 | 41,08 | 2 |
| 2018 | 319 | 13.059,88 | 40,94 | 2 |
| 2019 | 295 | 12.326,40 | 41,78 | 2 |
| 2020 | 246 | 10.632,48 | 43,22 | 2 |
| 2021 | 223 | 8.585,47 | 38,50 | 2 |
| 2022 | 180 | 6.620,35 | 36,78 | 2 |
| 2023 | 185 | 6.474,61 | 35,00 | 2 |
| 2024 | 199 | 6.283,92 | 31,58 | 3 |
| totale | 7.747 | 288.728,97 | 37,27 | 36 |