| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 308 | 4.473,93 | 14,53 | 2 |
| 2007 | 221 | 4.939,37 | 22,35 | 1 |
| 2008 | 199 | 4.660,41 | 23,42 | 1 |
| 2009 | 437 | 9.335,22 | 21,36 | 5 |
| 2010 | 399 | 7.901,38 | 19,80 | 3 |
| 2011 | 314 | 6.345,60 | 20,21 | 3 |
| 2012 | 341 | 7.606,20 | 22,31 | 5 |
| 2013 | 283 | 5.634,82 | 19,91 | 5 |
| 2014 | 219 | 5.295,37 | 24,18 | 6 |
| 2015 | 168 | 4.034,21 | 24,01 | 4 |
| 2016 | 155 | 3.617,24 | 23,34 | 4 |
| 2017 | 162 | 3.396,61 | 20,97 | 4 |
| 2018 | 121 | 2.843,97 | 23,50 | 4 |
| 2019 | 102 | 2.333,10 | 22,87 | 4 |
| 2020 | 185 | 4.262,17 | 23,04 | 4 |
| 2021 | 155 | 3.429,46 | 22,13 | 4 |
| 2022 | 18 | 295,95 | 16,44 | 2 |
| 2023 | 33 | 470,49 | 14,26 | 3 |
| 2024 | 113 | 2.598,50 | 23,00 | 5 |
| totale | 3.933 | 83.474,00 | 21,22 | 69 |