| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 177 | 4.124,83 | 23,30 | 1 |
| 2007 | 511 | 9.137,87 | 17,88 | 1 |
| 2009 | 28 | 792,62 | 28,31 | 1 |
| 2010 | 29 | 952,02 | 32,83 | 1 |
| 2012 | 84 | 2.064,55 | 24,58 | 1 |
| 2013 | 58 | 1.473,08 | 25,40 | 1 |
| 2014 | 44 | 1.670,94 | 37,98 | 1 |
| 2015 | 38 | 1.318,64 | 34,70 | 1 |
| 2016 | 35 | 1.206,62 | 34,47 | 1 |
| 2017 | 31 | 1.159,35 | 37,40 | 1 |
| 2018 | 23 | 1.023,38 | 44,49 | 1 |
| 2019 | 28 | 988,87 | 35,32 | 1 |
| 2020 | 34 | 1.442,62 | 42,43 | 1 |
| 2021 | 31 | 1.234,72 | 39,83 | 2 |
| 2022 | 25 | 917,76 | 36,71 | 2 |
| 2023 | 22 | 806,36 | 36,65 | 3 |
| 2024 | 23 | 756,49 | 32,89 | 2 |
| totale | 1.221 | 31.070,72 | 25,45 | 22 |