| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 228 | 10.818,88 | 47,45 | 2 |
| 2007 | 168 | 8.629,02 | 51,36 | 1 |
| 2008 | 50 | 1.199,59 | 23,99 | 2 |
| 2009 | 153 | 5.749,60 | 37,58 | 3 |
| 2010 | 212 | 4.729,68 | 22,31 | 4 |
| 2011 | 114 | 3.222,34 | 28,27 | 2 |
| 2012 | 134 | 3.298,56 | 24,62 | 3 |
| 2013 | 184 | 4.323,44 | 23,50 | 4 |
| 2014 | 103 | 3.712,44 | 36,04 | 3 |
| 2015 | 149 | 4.302,75 | 28,88 | 3 |
| 2016 | 148 | 4.796,37 | 32,41 | 3 |
| 2017 | 142 | 4.868,74 | 34,29 | 3 |
| 2018 | 132 | 4.248,15 | 32,18 | 3 |
| 2019 | 131 | 3.929,55 | 30,00 | 3 |
| 2020 | 107 | 2.694,10 | 25,18 | 3 |
| 2021 | 80 | 1.829,77 | 22,87 | 3 |
| 2022 | 33 | 718,66 | 21,78 | 2 |
| 2023 | 16 | 337,39 | 21,09 | 1 |
| 2024 | 18 | 462,87 | 25,72 | 1 |
| totale | 2.302 | 73.871,90 | 32,09 | 49 |