| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 139 | 3.221,20 | 23,17 | 2 |
| 2007 | 73 | 2.376,15 | 32,55 | 1 |
| 2008 | 77 | 2.501,52 | 32,49 | 1 |
| 2009 | 90 | 3.314,35 | 36,83 | 3 |
| 2010 | 96 | 2.263,62 | 23,58 | 2 |
| 2011 | 69 | 1.673,35 | 24,25 | 1 |
| 2012 | 115 | 2.378,11 | 20,68 | 2 |
| 2013 | 134 | 2.852,20 | 21,29 | 2 |
| 2014 | 173 | 4.995,29 | 28,87 | 3 |
| 2015 | 133 | 3.413,86 | 25,67 | 2 |
| 2016 | 228 | 5.955,87 | 26,12 | 4 |
| 2017 | 308 | 8.120,04 | 26,36 | 4 |
| 2018 | 319 | 8.445,74 | 26,48 | 4 |
| 2019 | 339 | 9.466,26 | 27,92 | 4 |
| 2020 | 150 | 4.349,29 | 29,00 | 3 |
| 2021 | 141 | 4.211,30 | 29,87 | 3 |
| 2022 | 130 | 3.613,00 | 27,79 | 3 |
| 2023 | 129 | 4.911,39 | 38,07 | 4 |
| 2024 | 129 | 4.704,17 | 36,47 | 5 |
| totale | 2.972 | 82.766,71 | 27,85 | 53 |