| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 700 | 14.309,90 | 20,44 | 4 |
| 2007 | 516 | 12.461,82 | 24,15 | 2 |
| 2008 | 443 | 10.604,03 | 23,94 | 2 |
| 2009 | 460 | 10.453,96 | 22,73 | 4 |
| 2010 | 438 | 8.438,83 | 19,27 | 4 |
| 2011 | 354 | 6.937,88 | 19,60 | 1 |
| 2012 | 391 | 8.330,06 | 21,30 | 6 |
| 2013 | 500 | 10.001,95 | 20,00 | 5 |
| 2014 | 543 | 13.591,28 | 25,03 | 6 |
| 2015 | 503 | 12.947,40 | 25,74 | 5 |
| 2016 | 510 | 13.716,32 | 26,89 | 6 |
| 2017 | 483 | 14.412,54 | 29,84 | 6 |
| 2018 | 466 | 15.351,88 | 32,94 | 6 |
| 2019 | 460 | 15.133,78 | 32,90 | 6 |
| 2020 | 453 | 12.448,47 | 27,48 | 7 |
| 2021 | 436 | 12.701,58 | 29,13 | 8 |
| 2022 | 415 | 11.293,56 | 27,21 | 7 |
| 2023 | 361 | 9.086,69 | 25,17 | 7 |
| 2024 | 335 | 8.614,43 | 25,71 | 8 |
| totale | 8.767 | 220.836,36 | 25,19 | 100 |