| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 33 | 1.205,85 | 36,54 | 2 |
| 2007 | 12 | 727,43 | 60,62 | 1 |
| 2008 | 14 | 829,20 | 59,23 | 1 |
| 2009 | 27 | 1.280,46 | 47,42 | 2 |
| 2010 | 31 | 1.129,74 | 36,44 | 2 |
| 2011 | 27 | 1.249,53 | 46,28 | 1 |
| 2012 | 36 | 1.423,86 | 39,55 | 2 |
| 2013 | 34 | 1.108,17 | 32,59 | 2 |
| 2014 | 30 | 1.129,40 | 37,65 | 2 |
| 2015 | 23 | 973,27 | 42,32 | 2 |
| 2016 | 41 | 1.642,73 | 40,07 | 3 |
| 2017 | 48 | 1.708,09 | 35,59 | 3 |
| 2018 | 49 | 1.382,26 | 28,21 | 3 |
| 2019 | 47 | 1.407,42 | 29,95 | 3 |
| 2020 | 48 | 1.458,32 | 30,38 | 3 |
| 2021 | 49 | 1.542,86 | 31,49 | 3 |
| 2022 | 12 | 230,06 | 19,17 | 2 |
| 2023 | 6 | 103,26 | 17,21 | 1 |
| 2024 | 7 | 125,73 | 17,96 | 1 |
| totale | 574 | 20.657,64 | 35,99 | 39 |