| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 4 | 89,14 | 22,29 | 1 |
| 2009 | 2.129 | 44.833,07 | 21,06 | 2 |
| 2010 | 1.469 | 27.573,55 | 18,77 | 2 |
| 2011 | 1.316 | 22.865,93 | 17,38 | 1 |
| 2012 | 1.082 | 19.115,74 | 17,67 | 2 |
| 2013 | 1.108 | 20.564,40 | 18,56 | 2 |
| 2014 | 1.139 | 25.791,10 | 22,64 | 2 |
| 2015 | 895 | 42.918,03 | 47,95 | 2 |
| 2016 | 864 | 19.698,97 | 22,80 | 2 |
| 2017 | 872 | 19.747,95 | 22,65 | 2 |
| 2018 | 894 | 18.555,00 | 20,76 | 2 |
| 2019 | 875 | 18.341,21 | 20,96 | 2 |
| 2020 | 1.092 | 24.773,36 | 22,69 | 3 |
| 2021 | 989 | 22.591,49 | 22,84 | 3 |
| 2022 | 791 | 19.516,46 | 24,67 | 3 |
| 2023 | 625 | 14.650,57 | 23,44 | 3 |
| 2024 | 585 | 13.397,18 | 22,90 | 2 |
| totale | 16.729 | 375.023,15 | 22,42 | 36 |