| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 69 | 1.296,61 | 18,79 | 2 |
| 2007 | 33 | 593,82 | 17,99 | 2 |
| 2008 | 5 | 102,49 | 20,50 | 1 |
| 2009 | 3 | 15,90 | 5,30 | 1 |
| 2010 | 3 | 70,86 | 23,62 | 1 |
| 2011 | 3 | 66,98 | 22,33 | 1 |
| 2012 | 11 | 122,40 | 11,13 | 2 |
| 2013 | 114 | 1.977,00 | 17,34 | 2 |
| 2014 | 32 | 641,25 | 20,04 | 2 |
| 2015 | 19 | 442,02 | 23,26 | 1 |
| 2016 | 17 | 417,67 | 24,57 | 1 |
| 2017 | 14 | 341,65 | 24,40 | 1 |
| 2018 | 17 | 1.214,73 | 71,45 | 2 |
| 2019 | 13 | 299,95 | 23,07 | 2 |
| 2020 | 12 | 240,50 | 20,04 | 2 |
| 2021 | 14 | 272,50 | 19,46 | 3 |
| 2022 | 12 | 238,64 | 19,89 | 3 |
| 2023 | 30 | 946,61 | 31,55 | 4 |
| 2024 | 58 | 1.261,91 | 21,76 | 4 |
| totale | 479 | 10.563,49 | 22,05 | 37 |