| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 108 | 2.638,64 | 24,43 | 2 |
| 2007 | 48 | 2.364,82 | 49,27 | 1 |
| 2008 | 61 | 2.392,74 | 39,23 | 1 |
| 2009 | 68 | 2.242,36 | 32,98 | 2 |
| 2010 | 59 | 1.674,56 | 28,38 | 2 |
| 2011 | 55 | 2.062,02 | 37,49 | 1 |
| 2012 | 55 | 1.693,08 | 30,78 | 2 |
| 2013 | 44 | 1.137,45 | 25,85 | 2 |
| 2014 | 46 | 1.423,83 | 30,95 | 2 |
| 2015 | 42 | 1.400,91 | 33,36 | 2 |
| 2016 | 44 | 1.494,94 | 33,98 | 2 |
| 2017 | 45 | 1.289,58 | 28,66 | 2 |
| 2018 | 46 | 1.482,85 | 32,24 | 2 |
| 2019 | 38 | 1.258,91 | 33,13 | 2 |
| 2020 | 36 | 1.425,12 | 39,59 | 2 |
| 2021 | 34 | 1.420,72 | 41,79 | 2 |
| 2022 | 4 | 106,19 | 26,55 | 1 |
| 2023 | 1 | 10,87 | 10,87 | 2 |
| 2024 | 18 | 388,79 | 21,60 | 2 |
| totale | 852 | 27.908,38 | 32,76 | 34 |