| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 50 | 1.226,11 | 24,52 | 1 |
| 2007 | 13 | 461,10 | 35,47 | 1 |
| 2008 | 4 | 103,72 | 25,93 | 1 |
| 2009 | 21 | 525,73 | 25,03 | 2 |
| 2010 | 27 | 727,03 | 26,93 | 2 |
| 2012 | 26 | 846,87 | 32,57 | 3 |
| 2013 | 19 | 653,00 | 34,37 | 3 |
| 2014 | 14 | 330,69 | 23,62 | 2 |
| 2015 | 16 | 325,38 | 20,34 | 2 |
| 2016 | 13 | 308,56 | 23,74 | 2 |
| 2017 | 13 | 287,97 | 22,15 | 2 |
| 2018 | 12 | 290,26 | 24,19 | 2 |
| 2019 | 12 | 275,58 | 22,97 | 2 |
| 2020 | 10 | 299,62 | 29,96 | 2 |
| 2021 | 12 | 307,44 | 25,62 | 2 |
| 2022 | 12 | 309,93 | 25,83 | 2 |
| 2023 | 12 | 306,56 | 25,55 | 2 |
| 2024 | 18 | 408,64 | 22,70 | 2 |
| totale | 304 | 7.994,19 | 26,30 | 35 |