| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 35 | 529,36 | 15,12 | 1 |
| 2009 | 12 | 219,54 | 18,30 | 1 |
| 2010 | 17 | 311,87 | 18,35 | 1 |
| 2012 | 26 | 479,01 | 18,42 | 1 |
| 2013 | 23 | 356,51 | 15,50 | 1 |
| 2014 | 19 | 370,96 | 19,52 | 1 |
| 2015 | 15 | 297,43 | 19,83 | 1 |
| 2016 | 18 | 399,27 | 22,18 | 1 |
| 2017 | 16 | 388,77 | 24,30 | 1 |
| 2018 | 15 | 380,87 | 25,39 | 1 |
| 2019 | 17 | 384,26 | 22,60 | 1 |
| 2020 | 16 | 370,46 | 23,15 | 1 |
| 2021 | 14 | 351,59 | 25,11 | 1 |
| 2022 | 13 | 381,61 | 29,35 | 1 |
| 2023 | 15 | 417,81 | 27,85 | 1 |
| 2024 | 15 | 414,93 | 27,66 | 1 |
| totale | 286 | 6.054,25 | 21,17 | 16 |