| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 35 | 416,89 | 11,91 | 1 |
| 2008 | 18 | 347,15 | 19,29 | 1 |
| 2009 | 20 | 402,58 | 20,13 | 2 |
| 2010 | 20 | 283,84 | 14,19 | 2 |
| 2011 | 18 | 269,07 | 14,95 | 1 |
| 2012 | 28 | 440,07 | 15,72 | 2 |
| 2013 | 18 | 215,34 | 11,96 | 2 |
| 2014 | 26 | 458,61 | 17,64 | 3 |
| 2015 | 13 | 287,58 | 22,12 | 2 |
| 2016 | 21 | 454,34 | 21,64 | 3 |
| 2017 | 13 | 276,16 | 21,24 | 2 |
| 2018 | 9 | 212,63 | 23,63 | 1 |
| 2019 | 11 | 226,27 | 20,57 | 2 |
| 2020 | 9 | 262,11 | 29,12 | 2 |
| 2021 | 10 | 291,16 | 29,12 | 2 |
| 2022 | 10 | 314,86 | 31,49 | 2 |
| 2023 | 9 | 253,53 | 28,17 | 2 |
| 2024 | 12 | 305,41 | 25,45 | 2 |
| totale | 300 | 5.717,60 | 19,06 | 34 |