| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 231 | 3.933,47 | 17,03 | 3 |
| 2007 | 165 | 3.041,20 | 18,43 | 1 |
| 2008 | 166 | 3.072,22 | 18,51 | 1 |
| 2009 | 144 | 2.809,44 | 19,51 | 3 |
| 2010 | 172 | 2.657,11 | 15,45 | 3 |
| 2011 | 139 | 2.374,56 | 17,08 | 2 |
| 2012 | 201 | 3.236,43 | 16,10 | 3 |
| 2013 | 199 | 2.957,32 | 14,86 | 3 |
| 2014 | 186 | 3.500,17 | 18,82 | 3 |
| 2015 | 150 | 2.919,76 | 19,47 | 4 |
| 2016 | 179 | 4.077,68 | 22,78 | 4 |
| 2017 | 183 | 3.752,48 | 20,51 | 4 |
| 2018 | 221 | 4.638,17 | 20,99 | 4 |
| 2019 | 239 | 4.653,14 | 19,47 | 4 |
| 2020 | 215 | 4.466,29 | 20,77 | 4 |
| 2021 | 216 | 4.590,44 | 21,25 | 4 |
| 2022 | 119 | 2.954,21 | 24,83 | 2 |
| 2023 | 113 | 2.594,94 | 22,96 | 3 |
| 2024 | 120 | 2.525,08 | 21,04 | 3 |
| totale | 3.358 | 64.754,11 | 19,28 | 58 |