| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 411 | 7.620,99 | 18,54 | 2 |
| 2007 | 396 | 7.979,80 | 20,15 | 1 |
| 2008 | 379 | 7.567,61 | 19,97 | 1 |
| 2009 | 385 | 8.842,11 | 22,97 | 2 |
| 2010 | 358 | 6.563,87 | 18,33 | 2 |
| 2011 | 236 | 4.507,92 | 19,10 | 1 |
| 2012 | 267 | 4.915,27 | 18,41 | 2 |
| 2013 | 221 | 4.285,32 | 19,39 | 2 |
| 2014 | 181 | 4.283,44 | 23,67 | 2 |
| 2015 | 179 | 4.120,57 | 23,02 | 2 |
| 2016 | 219 | 6.524,20 | 29,79 | 2 |
| 2017 | 208 | 5.823,95 | 28,00 | 2 |
| 2018 | 165 | 4.121,59 | 24,98 | 2 |
| 2019 | 156 | 4.279,57 | 27,43 | 2 |
| 2020 | 92 | 2.192,79 | 23,83 | 2 |
| 2021 | 94 | 2.202,22 | 23,43 | 2 |
| 2022 | 94 | 3.480,09 | 37,02 | 2 |
| 2023 | 80 | 1.870,75 | 23,38 | 3 |
| 2024 | 94 | 2.072,94 | 22,05 | 4 |
| totale | 4.215 | 93.255,00 | 22,12 | 38 |