| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 261 | 4.614,88 | 17,68 | 2 |
| 2007 | 146 | 3.296,69 | 22,58 | 1 |
| 2008 | 173 | 3.549,40 | 20,52 | 1 |
| 2009 | 205 | 3.922,62 | 19,13 | 2 |
| 2010 | 220 | 3.753,11 | 17,06 | 2 |
| 2011 | 208 | 3.340,51 | 16,06 | 1 |
| 2012 | 220 | 3.947,66 | 17,94 | 2 |
| 2013 | 188 | 3.420,44 | 18,19 | 2 |
| 2014 | 179 | 4.128,46 | 23,06 | 2 |
| 2015 | 173 | 3.994,57 | 23,09 | 2 |
| 2016 | 158 | 3.860,89 | 24,44 | 2 |
| 2017 | 161 | 3.915,45 | 24,32 | 2 |
| 2018 | 148 | 3.279,31 | 22,16 | 2 |
| 2019 | 149 | 3.588,27 | 24,08 | 2 |
| 2020 | 199 | 4.969,07 | 24,97 | 3 |
| 2021 | 235 | 5.936,72 | 25,26 | 3 |
| 2022 | 252 | 6.785,33 | 26,93 | 4 |
| 2023 | 235 | 6.195,17 | 26,36 | 4 |
| 2024 | 225 | 6.147,24 | 27,32 | 4 |
| totale | 3.735 | 82.645,79 | 22,13 | 43 |