| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 88 | 2.477,57 | 28,15 | 2 |
| 2007 | 52 | 1.665,82 | 32,04 | 1 |
| 2008 | 70 | 1.959,62 | 27,99 | 1 |
| 2009 | 74 | 1.987,58 | 26,86 | 2 |
| 2010 | 78 | 1.900,33 | 24,36 | 2 |
| 2011 | 82 | 2.305,33 | 28,11 | 1 |
| 2012 | 98 | 2.854,08 | 29,12 | 2 |
| 2013 | 83 | 2.387,07 | 28,76 | 2 |
| 2014 | 88 | 3.051,60 | 34,68 | 3 |
| 2015 | 71 | 2.296,32 | 32,34 | 2 |
| 2016 | 74 | 2.730,05 | 36,89 | 2 |
| 2017 | 74 | 2.508,98 | 33,91 | 2 |
| 2018 | 66 | 1.964,39 | 29,76 | 2 |
| 2019 | 84 | 2.689,31 | 32,02 | 2 |
| 2020 | 94 | 3.071,60 | 32,68 | 2 |
| 2021 | 77 | 2.424,94 | 31,49 | 2 |
| 2022 | 52 | 1.699,97 | 32,69 | 2 |
| 2023 | 63 | 1.967,58 | 31,23 | 3 |
| 2024 | 93 | 2.639,49 | 28,38 | 3 |
| totale | 1.461 | 44.581,63 | 30,51 | 38 |