| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 145 | 3.977,55 | 27,43 | 3 |
| 2007 | 127 | 3.309,38 | 26,06 | 2 |
| 2008 | 129 | 3.455,05 | 26,78 | 2 |
| 2009 | 104 | 2.823,53 | 27,15 | 3 |
| 2010 | 164 | 3.966,78 | 24,19 | 3 |
| 2011 | 215 | 4.442,75 | 20,66 | 2 |
| 2012 | 106 | 3.351,06 | 31,61 | 2 |
| 2013 | 215 | 4.522,99 | 21,04 | 3 |
| 2014 | 159 | 4.811,87 | 30,26 | 3 |
| 2015 | 155 | 4.260,02 | 27,48 | 4 |
| 2016 | 95 | 2.780,77 | 29,27 | 4 |
| 2017 | 86 | 2.639,03 | 30,69 | 3 |
| 2018 | 74 | 1.907,28 | 25,77 | 3 |
| 2019 | 73 | 1.819,55 | 24,93 | 3 |
| 2020 | 61 | 1.591,10 | 26,08 | 3 |
| 2021 | 64 | 1.411,03 | 22,05 | 3 |
| 2022 | 12 | 440,26 | 36,69 | 1 |
| 2023 | 14 | 410,71 | 29,34 | 1 |
| 2024 | 14 | 408,19 | 29,16 | 1 |
| totale | 2.012 | 52.328,90 | 26,01 | 49 |