| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 157 | 2.980,80 | 18,99 | 3 |
| 2007 | 59 | 1.440,01 | 24,41 | 2 |
| 2008 | 30 | 557,14 | 18,57 | 3 |
| 2009 | 60 | 1.357,58 | 22,63 | 3 |
| 2010 | 58 | 1.166,59 | 20,11 | 3 |
| 2012 | 18 | 391,06 | 21,73 | 1 |
| 2013 | 11 | 316,75 | 28,80 | 1 |
| 2014 | 12 | 357,70 | 29,81 | 1 |
| 2015 | 16 | 528,91 | 33,06 | 1 |
| 2016 | 13 | 402,34 | 30,95 | 1 |
| 2017 | 13 | 469,26 | 36,10 | 1 |
| 2018 | 10 | 354,93 | 35,49 | 1 |
| 2019 | 11 | 423,75 | 38,52 | 1 |
| 2020 | 12 | 407,72 | 33,98 | 1 |
| 2021 | 15 | 541,20 | 36,08 | 1 |
| 2022 | 15 | 491,53 | 32,77 | 1 |
| 2023 | 17 | 499,15 | 29,36 | 1 |
| 2024 | 15 | 487,23 | 32,48 | 1 |
| totale | 542 | 13.173,65 | 24,31 | 27 |