| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 481 | 8.477,47 | 17,62 | 3 |
| 2007 | 251 | 5.617,07 | 22,38 | 2 |
| 2008 | 363 | 9.177,63 | 25,28 | 2 |
| 2009 | 473 | 10.865,78 | 22,97 | 3 |
| 2010 | 522 | 10.343,99 | 19,82 | 3 |
| 2011 | 526 | 10.329,10 | 19,64 | 3 |
| 2012 | 617 | 12.195,38 | 19,77 | 6 |
| 2013 | 619 | 11.859,55 | 19,16 | 6 |
| 2014 | 612 | 13.818,36 | 22,58 | 6 |
| 2015 | 602 | 14.649,39 | 24,33 | 5 |
| 2016 | 576 | 13.200,00 | 22,92 | 7 |
| 2017 | 560 | 12.989,47 | 23,20 | 7 |
| 2018 | 527 | 11.304,52 | 21,45 | 5 |
| 2019 | 526 | 11.384,85 | 21,64 | 5 |
| 2020 | 500 | 12.210,55 | 24,42 | 6 |
| 2021 | 496 | 12.198,98 | 24,59 | 6 |
| 2022 | 490 | 11.216,25 | 22,89 | 6 |
| 2023 | 511 | 12.734,98 | 24,92 | 6 |
| 2024 | 533 | 12.239,78 | 22,96 | 8 |
| totale | 9.785 | 216.813,10 | 22,16 | 95 |