| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 51 | 1.544,30 | 30,28 | 1 |
| 2007 | 26 | 1.376,52 | 52,94 | 1 |
| 2008 | 48 | 2.540,16 | 52,92 | 2 |
| 2009 | 38 | 1.791,91 | 47,16 | 2 |
| 2010 | 37 | 1.476,00 | 39,89 | 2 |
| 2011 | 26 | 940,40 | 36,17 | 1 |
| 2012 | 29 | 679,09 | 23,42 | 2 |
| 2013 | 24 | 504,97 | 21,04 | 2 |
| 2014 | 17 | 464,56 | 27,33 | 2 |
| 2015 | 22 | 524,10 | 23,82 | 2 |
| 2016 | 28 | 867,58 | 30,99 | 3 |
| 2017 | 22 | 660,88 | 30,04 | 3 |
| 2018 | 34 | 944,16 | 27,77 | 3 |
| 2019 | 33 | 831,16 | 25,19 | 3 |
| 2020 | 30 | 1.219,71 | 40,66 | 3 |
| 2021 | 37 | 1.325,90 | 35,84 | 3 |
| 2022 | 53 | 1.901,78 | 35,88 | 3 |
| 2023 | 75 | 2.699,51 | 35,99 | 3 |
| 2024 | 75 | 2.433,19 | 32,44 | 3 |
| totale | 705 | 24.725,88 | 35,07 | 44 |