| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 675 | 18.277,97 | 27,08 | 2 |
| 2007 | 310 | 12.347,55 | 39,83 | 2 |
| 2008 | 295 | 13.427,78 | 45,52 | 1 |
| 2009 | 377 | 14.973,76 | 39,72 | 2 |
| 2010 | 408 | 10.946,87 | 26,83 | 3 |
| 2011 | 177 | 4.928,14 | 27,84 | 1 |
| 2012 | 484 | 11.497,90 | 23,76 | 3 |
| 2013 | 495 | 11.431,50 | 23,09 | 4 |
| 2014 | 536 | 18.537,08 | 34,58 | 5 |
| 2015 | 549 | 16.960,11 | 30,89 | 5 |
| 2016 | 567 | 17.576,77 | 31,00 | 7 |
| 2017 | 502 | 15.304,95 | 30,49 | 7 |
| 2018 | 488 | 17.867,81 | 36,61 | 7 |
| 2019 | 501 | 17.657,29 | 35,24 | 7 |
| 2020 | 477 | 17.614,51 | 36,93 | 8 |
| 2021 | 302 | 9.314,40 | 30,84 | 7 |
| 2022 | 283 | 9.714,44 | 34,33 | 9 |
| 2023 | 278 | 10.373,81 | 37,32 | 10 |
| 2024 | 239 | 8.853,02 | 37,04 | 10 |
| totale | 7.943 | 257.605,66 | 32,43 | 100 |