| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 128 | 2.532,35 | 19,78 | 1 |
| 2009 | 27 | 679,80 | 25,18 | 1 |
| 2010 | 29 | 474,65 | 16,37 | 1 |
| 2012 | 35 | 486,81 | 13,91 | 1 |
| 2013 | 31 | 508,66 | 16,41 | 1 |
| 2014 | 22 | 430,55 | 19,57 | 2 |
| 2015 | 44 | 1.079,22 | 24,53 | 2 |
| 2016 | 36 | 660,21 | 18,34 | 2 |
| 2017 | 24 | 432,14 | 18,01 | 2 |
| 2018 | 23 | 525,23 | 22,84 | 2 |
| 2019 | 20 | 555,31 | 27,77 | 2 |
| 2020 | 21 | 653,46 | 31,12 | 2 |
| 2021 | 20 | 632,51 | 31,63 | 2 |
| 2022 | 19 | 489,67 | 25,77 | 2 |
| 2023 | 20 | 520,47 | 26,02 | 2 |
| 2024 | 19 | 363,80 | 19,15 | 5 |
| totale | 518 | 11.024,84 | 21,28 | 30 |