| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 621 | 17.565,38 | 28,29 | 2 |
| 2007 | 449 | 14.461,34 | 32,21 | 1 |
| 2008 | 410 | 14.798,24 | 36,09 | 1 |
| 2009 | 491 | 16.309,35 | 33,22 | 3 |
| 2010 | 451 | 12.355,78 | 27,40 | 3 |
| 2011 | 436 | 12.346,30 | 28,32 | 2 |
| 2012 | 430 | 12.670,02 | 29,47 | 3 |
| 2013 | 464 | 12.109,70 | 26,10 | 3 |
| 2014 | 476 | 14.924,73 | 31,35 | 3 |
| 2015 | 461 | 14.622,88 | 31,72 | 3 |
| 2016 | 427 | 13.377,99 | 31,33 | 3 |
| 2017 | 398 | 12.509,68 | 31,43 | 3 |
| 2018 | 376 | 12.823,32 | 34,10 | 3 |
| 2019 | 358 | 12.052,78 | 33,67 | 3 |
| 2020 | 358 | 13.818,11 | 38,60 | 4 |
| 2021 | 340 | 12.391,71 | 36,45 | 4 |
| 2022 | 311 | 11.057,45 | 35,55 | 3 |
| 2023 | 298 | 10.452,37 | 35,08 | 3 |
| 2024 | 361 | 11.741,19 | 32,52 | 5 |
| totale | 7.916 | 252.388,32 | 31,88 | 55 |