| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 370 | 6.494,48 | 17,55 | 2 |
| 2007 | 306 | 5.671,19 | 18,53 | 1 |
| 2008 | 284 | 4.728,28 | 16,65 | 2 |
| 2009 | 287 | 4.632,49 | 16,14 | 2 |
| 2010 | 271 | 3.952,96 | 14,59 | 3 |
| 2011 | 254 | 3.573,82 | 14,07 | 1 |
| 2012 | 282 | 4.370,54 | 15,50 | 3 |
| 2013 | 257 | 3.667,65 | 14,27 | 3 |
| 2014 | 268 | 4.611,39 | 17,21 | 3 |
| 2015 | 234 | 4.355,59 | 18,61 | 4 |
| 2016 | 260 | 4.937,74 | 18,99 | 4 |
| 2017 | 271 | 5.193,92 | 19,17 | 4 |
| 2018 | 265 | 5.166,17 | 19,49 | 4 |
| 2019 | 252 | 5.533,52 | 21,96 | 4 |
| 2020 | 243 | 5.391,07 | 22,19 | 4 |
| 2021 | 222 | 4.851,31 | 21,85 | 4 |
| 2022 | 214 | 4.568,94 | 21,35 | 4 |
| 2023 | 218 | 5.026,35 | 23,06 | 5 |
| 2024 | 218 | 5.106,52 | 23,42 | 5 |
| totale | 4.976 | 91.833,93 | 18,46 | 62 |