| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 89 | 2.839,41 | 31,90 | 2 |
| 2007 | 93 | 3.039,84 | 32,69 | 1 |
| 2008 | 74 | 2.919,44 | 39,45 | 1 |
| 2009 | 70 | 2.259,91 | 32,28 | 2 |
| 2010 | 46 | 1.164,38 | 25,31 | 2 |
| 2011 | 45 | 1.221,93 | 27,15 | 1 |
| 2012 | 83 | 1.859,85 | 22,41 | 4 |
| 2013 | 134 | 2.098,61 | 15,66 | 4 |
| 2014 | 174 | 3.507,30 | 20,16 | 4 |
| 2015 | 85 | 2.263,97 | 26,63 | 4 |
| 2016 | 87 | 2.213,25 | 25,44 | 4 |
| 2017 | 98 | 2.486,90 | 25,38 | 4 |
| 2018 | 52 | 1.217,93 | 23,42 | 3 |
| 2019 | 26 | 711,03 | 27,35 | 2 |
| 2020 | 25 | 706,66 | 28,27 | 2 |
| 2021 | 25 | 686,49 | 27,46 | 2 |
| 2022 | 53 | 2.127,74 | 40,15 | 3 |
| 2023 | 45 | 1.580,54 | 35,12 | 3 |
| 2024 | 38 | 1.293,11 | 34,03 | 3 |
| totale | 1.342 | 36.198,29 | 26,97 | 51 |