| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 93 | 1.861,64 | 20,02 | 1 |
| 2007 | 48 | 2.523,78 | 52,58 | 1 |
| 2008 | 37 | 2.313,60 | 62,53 | 1 |
| 2009 | 89 | 4.046,45 | 45,47 | 2 |
| 2010 | 79 | 2.839,73 | 35,95 | 2 |
| 2011 | 11 | 262,58 | 23,87 | 1 |
| 2012 | 80 | 2.722,51 | 34,03 | 3 |
| 2013 | 54 | 2.459,64 | 45,55 | 2 |
| 2014 | 80 | 3.995,44 | 49,94 | 3 |
| 2015 | 36 | 1.230,40 | 34,18 | 2 |
| 2016 | 34 | 819,67 | 24,11 | 2 |
| 2017 | 38 | 982,74 | 25,86 | 2 |
| 2018 | 44 | 1.015,01 | 23,07 | 2 |
| 2019 | 63 | 1.686,86 | 26,78 | 2 |
| 2020 | 22 | 504,29 | 22,92 | 1 |
| 2021 | 21 | 400,05 | 19,05 | 1 |
| 2022 | 29 | 567,33 | 19,56 | 1 |
| 2023 | 26 | 612,53 | 23,56 | 2 |
| 2024 | 105 | 2.219,54 | 21,14 | 4 |
| totale | 989 | 33.063,79 | 33,43 | 35 |