| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 230 | 4.622,66 | 20,10 | 2 |
| 2007 | 214 | 4.637,64 | 21,67 | 1 |
| 2008 | 226 | 4.918,85 | 21,76 | 1 |
| 2009 | 282 | 6.438,85 | 22,83 | 3 |
| 2010 | 326 | 6.242,72 | 19,15 | 3 |
| 2011 | 326 | 6.694,22 | 20,53 | 3 |
| 2012 | 323 | 7.149,24 | 22,13 | 3 |
| 2013 | 370 | 6.988,81 | 18,89 | 3 |
| 2014 | 261 | 6.695,27 | 25,65 | 3 |
| 2015 | 267 | 6.525,44 | 24,44 | 3 |
| 2016 | 285 | 6.572,21 | 23,06 | 3 |
| 2017 | 315 | 6.688,34 | 21,23 | 3 |
| 2018 | 287 | 6.403,97 | 22,31 | 3 |
| 2019 | 285 | 7.159,90 | 25,12 | 3 |
| 2020 | 221 | 5.360,39 | 24,26 | 3 |
| 2021 | 255 | 5.669,20 | 22,23 | 3 |
| 2022 | 119 | 3.279,02 | 27,55 | 2 |
| 2023 | 114 | 3.071,36 | 26,94 | 2 |
| 2024 | 126 | 3.406,03 | 27,03 | 2 |
| totale | 4.832 | 108.524,12 | 22,46 | 49 |