| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 15 | 226,15 | 15,08 | 1 |
| 2009 | 5 | 71,65 | 14,33 | 2 |
| 2010 | 87 | 1.267,92 | 14,57 | 2 |
| 2011 | 1 | 88,11 | 88,11 | 1 |
| 2012 | 29 | 413,94 | 14,27 | 1 |
| 2013 | 28 | 451,33 | 16,12 | 1 |
| 2014 | 22 | 447,46 | 20,34 | 2 |
| 2015 | 21 | 387,90 | 18,47 | 1 |
| 2016 | 20 | 461,41 | 23,07 | 2 |
| 2017 | 21 | 510,52 | 24,31 | 2 |
| 2018 | 20 | 422,00 | 21,10 | 2 |
| 2019 | 19 | 363,95 | 19,16 | 2 |
| 2020 | 17 | 362,59 | 21,33 | 2 |
| 2021 | 25 | 601,66 | 24,07 | 2 |
| 2022 | 28 | 884,58 | 31,59 | 3 |
| 2023 | 50 | 892,16 | 17,84 | 3 |
| 2024 | 44 | 920,55 | 20,92 | 3 |
| totale | 452 | 8.773,88 | 19,41 | 32 |