| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 97 | 1.541,96 | 15,90 | 2 |
| 2007 | 23 | 473,15 | 20,57 | 1 |
| 2008 | 14 | 310,84 | 22,20 | 1 |
| 2009 | 6 | 56,37 | 9,40 | 1 |
| 2010 | 7 | 207,46 | 29,64 | 1 |
| 2012 | 19 | 535,77 | 28,20 | 2 |
| 2013 | 16 | 238,16 | 14,89 | 2 |
| 2014 | 11 | 252,21 | 22,93 | 2 |
| 2015 | 14 | 244,61 | 17,47 | 1 |
| 2016 | 16 | 404,73 | 25,30 | 2 |
| 2017 | 18 | 511,22 | 28,40 | 2 |
| 2018 | 20 | 461,18 | 23,06 | 2 |
| 2019 | 21 | 348,36 | 16,59 | 2 |
| 2020 | 25 | 471,63 | 18,87 | 2 |
| 2021 | 23 | 420,83 | 18,30 | 2 |
| 2022 | 22 | 600,11 | 27,28 | 2 |
| 2023 | 22 | 566,78 | 25,76 | 2 |
| 2024 | 19 | 282,04 | 14,84 | 2 |
| totale | 393 | 7.927,41 | 20,17 | 31 |