| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 548 | 12.673,52 | 23,13 | 5 |
| 2007 | 314 | 9.377,43 | 29,86 | 3 |
| 2008 | 237 | 6.892,92 | 29,08 | 5 |
| 2009 | 43 | 1.458,62 | 33,92 | 3 |
| 2010 | 298 | 7.831,28 | 26,28 | 3 |
| 2011 | 328 | 8.887,12 | 27,09 | 1 |
| 2012 | 16 | 248,97 | 15,56 | 1 |
| 2013 | 8 | 160,20 | 20,03 | 1 |
| 2014 | 23 | 525,37 | 22,84 | 2 |
| 2015 | 17 | 366,51 | 21,56 | 2 |
| 2016 | 21 | 512,25 | 24,39 | 2 |
| 2017 | 21 | 533,62 | 25,41 | 2 |
| 2018 | 19 | 384,28 | 20,23 | 2 |
| 2019 | 20 | 516,13 | 25,81 | 2 |
| 2020 | 21 | 484,91 | 23,09 | 2 |
| 2021 | 189 | 3.838,91 | 20,31 | 2 |
| 2022 | 245 | 4.959,20 | 20,24 | 2 |
| 2023 | 118 | 2.453,31 | 20,79 | 3 |
| 2024 | 117 | 2.451,11 | 20,95 | 3 |
| totale | 2.603 | 64.555,66 | 24,80 | 46 |