| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 131 | 3.415,17 | 26,07 | 2 |
| 2007 | 135 | 4.866,67 | 36,05 | 4 |
| 2008 | 150 | 5.490,43 | 36,60 | 4 |
| 2009 | 197 | 7.664,38 | 38,91 | 5 |
| 2010 | 229 | 8.081,75 | 35,29 | 4 |
| 2011 | 498 | 14.053,95 | 28,22 | 5 |
| 2012 | 575 | 15.788,55 | 27,46 | 6 |
| 2013 | 538 | 16.429,39 | 30,54 | 6 |
| 2014 | 497 | 19.217,92 | 38,67 | 5 |
| 2015 | 465 | 19.053,39 | 40,98 | 5 |
| 2016 | 471 | 18.394,81 | 39,05 | 5 |
| 2017 | 438 | 19.810,16 | 45,23 | 5 |
| 2018 | 429 | 20.072,63 | 46,79 | 5 |
| 2019 | 453 | 21.785,89 | 48,09 | 6 |
| 2020 | 423 | 21.021,36 | 49,70 | 6 |
| 2021 | 402 | 19.874,41 | 49,44 | 7 |
| 2022 | 396 | 18.833,39 | 47,56 | 7 |
| 2023 | 229 | 9.457,14 | 41,30 | 7 |
| 2024 | 266 | 9.422,53 | 35,42 | 7 |
| totale | 6.922 | 272.733,92 | 39,40 | 101 |