| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 6 | 38,06 | 6,34 | 1 |
| 2008 | 12 | 316,56 | 26,38 | 1 |
| 2009 | 291 | 6.699,44 | 23,02 | 2 |
| 2010 | 175 | 3.632,79 | 20,76 | 2 |
| 2011 | 233 | 4.395,45 | 18,86 | 1 |
| 2012 | 158 | 3.562,07 | 22,54 | 2 |
| 2013 | 176 | 2.774,81 | 15,77 | 2 |
| 2014 | 220 | 4.478,53 | 20,36 | 2 |
| 2015 | 159 | 3.406,03 | 21,42 | 2 |
| 2016 | 152 | 3.615,24 | 23,78 | 2 |
| 2017 | 227 | 4.685,29 | 20,64 | 2 |
| 2018 | 207 | 4.388,82 | 21,20 | 2 |
| 2019 | 277 | 5.437,02 | 19,63 | 2 |
| 2020 | 231 | 5.305,73 | 22,97 | 2 |
| 2021 | 189 | 4.643,54 | 24,57 | 2 |
| 2022 | 179 | 4.606,00 | 25,73 | 2 |
| 2023 | 163 | 3.974,47 | 24,38 | 2 |
| 2024 | 94 | 2.525,11 | 26,86 | 2 |
| totale | 3.149 | 68.484,96 | 21,75 | 33 |