| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 25 | 471,15 | 18,85 | 1 |
| 2009 | 36 | 524,59 | 14,57 | 1 |
| 2010 | 26 | 331,06 | 12,73 | 2 |
| 2011 | 387 | 9.390,64 | 24,27 | 1 |
| 2012 | 119 | 2.407,67 | 20,23 | 2 |
| 2013 | 130 | 2.766,93 | 21,28 | 2 |
| 2014 | 397 | 10.084,97 | 25,40 | 2 |
| 2015 | 242 | 6.025,97 | 24,90 | 3 |
| 2016 | 244 | 6.162,21 | 25,25 | 3 |
| 2017 | 299 | 7.486,55 | 25,04 | 2 |
| 2018 | 203 | 4.985,02 | 24,56 | 3 |
| 2019 | 171 | 3.928,27 | 22,97 | 3 |
| 2020 | 95 | 2.515,16 | 26,48 | 2 |
| 2021 | 83 | 2.366,88 | 28,52 | 2 |
| 2022 | 35 | 1.130,71 | 32,31 | 2 |
| 2023 | 35 | 996,16 | 28,46 | 2 |
| 2024 | 34 | 813,80 | 23,94 | 3 |
| totale | 2.561 | 62.387,74 | 24,36 | 36 |