| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 454 | 7.952,28 | 17,52 | 2 |
| 2007 | 293 | 5.132,64 | 17,52 | 1 |
| 2008 | 312 | 5.583,33 | 17,90 | 1 |
| 2009 | 439 | 7.447,45 | 16,96 | 2 |
| 2010 | 444 | 6.679,26 | 15,04 | 2 |
| 2011 | 335 | 5.001,91 | 14,93 | 1 |
| 2012 | 42 | 753,84 | 17,95 | 1 |
| 2013 | 297 | 4.503,51 | 15,16 | 2 |
| 2014 | 274 | 4.819,67 | 17,59 | 2 |
| 2015 | 236 | 4.071,94 | 17,25 | 2 |
| 2016 | 195 | 3.432,86 | 17,60 | 2 |
| 2017 | 179 | 3.101,66 | 17,33 | 2 |
| 2018 | 145 | 2.711,10 | 18,70 | 2 |
| 2019 | 128 | 2.351,90 | 18,37 | 2 |
| 2020 | 103 | 2.047,17 | 19,88 | 2 |
| 2021 | 87 | 1.667,06 | 19,16 | 2 |
| 2022 | 26 | 628,76 | 24,18 | 2 |
| 2023 | 29 | 572,27 | 19,73 | 2 |
| 2024 | 30 | 580,98 | 19,37 | 2 |
| totale | 4.048 | 69.039,59 | 17,06 | 34 |