| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 45 | 642,90 | 14,29 | 1 |
| 2007 | 28 | 1.756,11 | 62,72 | 1 |
| 2008 | 20 | 1.665,37 | 83,27 | 1 |
| 2009 | 28 | 1.420,03 | 50,72 | 2 |
| 2010 | 8 | 107,11 | 13,39 | 1 |
| 2012 | 21 | 515,38 | 24,54 | 2 |
| 2013 | 18 | 321,31 | 17,85 | 2 |
| 2014 | 5 | 103,40 | 20,68 | 1 |
| 2015 | 17 | 560,31 | 32,96 | 2 |
| 2016 | 13 | 292,06 | 22,47 | 2 |
| 2017 | 14 | 487,33 | 34,81 | 2 |
| 2018 | 13 | 484,64 | 37,28 | 2 |
| 2019 | 8 | 363,00 | 45,38 | 2 |
| 2020 | 10 | 441,48 | 44,15 | 2 |
| 2021 | 11 | 347,76 | 31,61 | 2 |
| 2022 | 11 | 384,56 | 34,96 | 2 |
| 2023 | 16 | 407,06 | 25,44 | 2 |
| 2024 | 16 | 381,10 | 23,82 | 2 |
| totale | 302 | 10.680,91 | 35,37 | 31 |