| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 37 | 541,77 | 14,64 | 1 |
| 2008 | 635 | 14.563,94 | 22,94 | 1 |
| 2009 | 545 | 13.842,42 | 25,40 | 2 |
| 2010 | 420 | 8.803,97 | 20,96 | 2 |
| 2011 | 287 | 5.430,43 | 18,92 | 2 |
| 2012 | 266 | 5.641,75 | 21,21 | 2 |
| 2013 | 212 | 4.729,21 | 22,31 | 2 |
| 2014 | 252 | 6.281,91 | 24,93 | 2 |
| 2015 | 199 | 5.344,88 | 26,86 | 2 |
| 2016 | 174 | 4.451,44 | 25,58 | 2 |
| 2017 | 181 | 4.237,42 | 23,41 | 2 |
| 2018 | 150 | 3.630,12 | 24,20 | 2 |
| 2019 | 151 | 4.331,28 | 28,68 | 2 |
| 2020 | 129 | 3.021,80 | 23,42 | 2 |
| 2021 | 128 | 2.714,06 | 21,20 | 2 |
| 2022 | 120 | 2.591,21 | 21,59 | 2 |
| 2023 | 101 | 2.221,88 | 22,00 | 2 |
| 2024 | 75 | 1.895,75 | 25,28 | 3 |
| totale | 4.062 | 94.275,24 | 23,21 | 35 |