| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 24 | 442,13 | 18,42 | 2 |
| 2007 | 20 | 274,23 | 13,71 | 1 |
| 2008 | 47 | 587,25 | 12,49 | 2 |
| 2009 | 57 | 1.219,80 | 21,40 | 2 |
| 2010 | 130 | 2.157,09 | 16,59 | 3 |
| 2011 | 55 | 1.358,54 | 24,70 | 2 |
| 2012 | 394 | 5.618,00 | 14,26 | 4 |
| 2013 | 392 | 5.396,11 | 13,77 | 4 |
| 2014 | 332 | 7.209,44 | 21,72 | 3 |
| 2015 | 293 | 5.698,79 | 19,45 | 4 |
| 2016 | 269 | 5.145,51 | 19,13 | 3 |
| 2017 | 333 | 6.293,15 | 18,90 | 3 |
| 2018 | 375 | 7.169,40 | 19,12 | 3 |
| 2019 | 367 | 7.331,80 | 19,98 | 3 |
| 2020 | 359 | 7.688,07 | 21,42 | 3 |
| 2021 | 380 | 8.517,47 | 22,41 | 3 |
| 2022 | 428 | 8.931,91 | 20,87 | 3 |
| 2023 | 426 | 8.793,26 | 20,64 | 3 |
| 2024 | 429 | 8.483,91 | 19,78 | 5 |
| totale | 5.110 | 98.315,86 | 19,24 | 56 |