| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 57 | 1.043,47 | 18,31 | 2 |
| 2007 | 20 | 424,95 | 21,25 | 1 |
| 2008 | 20 | 543,76 | 27,19 | 1 |
| 2009 | 25 | 544,13 | 21,77 | 2 |
| 2010 | 22 | 473,94 | 21,54 | 2 |
| 2011 | 28 | 483,86 | 17,28 | 1 |
| 2012 | 31 | 522,89 | 16,87 | 2 |
| 2013 | 31 | 629,02 | 20,29 | 2 |
| 2014 | 30 | 676,83 | 22,56 | 2 |
| 2015 | 9 | 175,30 | 19,48 | 1 |
| 2016 | 6 | 102,42 | 17,07 | 1 |
| 2017 | 33 | 1.144,88 | 34,69 | 2 |
| 2018 | 27 | 944,27 | 34,97 | 2 |
| 2019 | 21 | 780,53 | 37,17 | 2 |
| 2020 | 17 | 605,09 | 35,59 | 2 |
| 2021 | 11 | 519,94 | 47,27 | 2 |
| 2022 | 16 | 614,71 | 38,42 | 2 |
| 2023 | 9 | 499,60 | 55,51 | 2 |
| 2024 | 9 | 386,17 | 42,91 | 2 |
| totale | 422 | 11.115,76 | 26,34 | 33 |