| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 429 | 8.223,15 | 19,17 | 4 |
| 2007 | 274 | 5.609,90 | 20,47 | 2 |
| 2008 | 327 | 7.815,55 | 23,90 | 3 |
| 2009 | 259 | 5.400,43 | 20,85 | 3 |
| 2010 | 589 | 12.563,83 | 21,33 | 3 |
| 2011 | 747 | 15.358,28 | 20,56 | 3 |
| 2012 | 884 | 18.409,61 | 20,83 | 5 |
| 2013 | 992 | 18.923,04 | 19,08 | 5 |
| 2014 | 939 | 23.681,56 | 25,22 | 4 |
| 2015 | 972 | 22.579,21 | 23,23 | 4 |
| 2016 | 1.004 | 23.127,86 | 23,04 | 4 |
| 2017 | 197 | 5.037,19 | 25,57 | 3 |
| 2018 | 943 | 22.898,00 | 24,28 | 4 |
| 2019 | 902 | 22.844,35 | 25,33 | 4 |
| 2020 | 926 | 24.261,31 | 26,20 | 4 |
| 2021 | 977 | 24.843,30 | 25,43 | 5 |
| 2022 | 1.014 | 26.642,46 | 26,27 | 5 |
| 2023 | 970 | 26.108,44 | 26,92 | 5 |
| 2024 | 965 | 25.894,14 | 26,83 | 5 |
| totale | 14.310 | 340.221,61 | 23,78 | 75 |