| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 76 | 1.381,33 | 18,18 | 1 |
| 2007 | 26 | 675,77 | 25,99 | 1 |
| 2008 | 23 | 591,74 | 25,73 | 1 |
| 2009 | 46 | 1.501,47 | 32,64 | 2 |
| 2010 | 28 | 493,76 | 17,63 | 1 |
| 2012 | 37 | 734,58 | 19,85 | 1 |
| 2013 | 40 | 687,20 | 17,18 | 1 |
| 2014 | 34 | 733,35 | 21,57 | 1 |
| 2015 | 36 | 916,88 | 25,47 | 1 |
| 2016 | 30 | 869,11 | 28,97 | 1 |
| 2017 | 24 | 646,80 | 26,95 | 1 |
| 2018 | 21 | 604,86 | 28,80 | 1 |
| 2019 | 24 | 584,49 | 24,35 | 1 |
| 2020 | 29 | 688,05 | 23,73 | 1 |
| 2021 | 31 | 1.068,01 | 34,45 | 2 |
| 2022 | 30 | 916,35 | 30,55 | 3 |
| 2023 | 31 | 774,44 | 24,98 | 4 |
| 2024 | 39 | 1.108,43 | 28,42 | 5 |
| totale | 605 | 14.976,62 | 24,75 | 29 |