| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 225 | 6.188,09 | 27,50 | 2 |
| 2007 | 171 | 5.579,91 | 32,63 | 1 |
| 2008 | 174 | 5.705,28 | 32,79 | 1 |
| 2009 | 251 | 6.671,81 | 26,58 | 3 |
| 2010 | 264 | 5.669,86 | 21,48 | 3 |
| 2011 | 272 | 5.521,21 | 20,30 | 2 |
| 2012 | 261 | 5.861,10 | 22,46 | 3 |
| 2013 | 273 | 5.573,68 | 20,42 | 3 |
| 2014 | 263 | 6.666,37 | 25,35 | 4 |
| 2015 | 244 | 5.764,82 | 23,63 | 4 |
| 2016 | 264 | 6.452,22 | 24,44 | 4 |
| 2017 | 256 | 6.027,06 | 23,54 | 4 |
| 2018 | 251 | 5.921,44 | 23,59 | 4 |
| 2019 | 246 | 5.842,35 | 23,75 | 4 |
| 2020 | 226 | 5.494,15 | 24,31 | 4 |
| 2021 | 205 | 5.153,68 | 25,14 | 4 |
| 2022 | 193 | 4.856,99 | 25,17 | 4 |
| 2023 | 202 | 5.318,82 | 26,33 | 4 |
| 2024 | 206 | 5.052,64 | 24,53 | 5 |
| totale | 4.447 | 109.321,48 | 24,58 | 63 |