| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 127 | 1.987,59 | 15,65 | 2 |
| 2007 | 41 | 1.158,26 | 28,25 | 1 |
| 2008 | 38 | 1.165,04 | 30,66 | 1 |
| 2009 | 46 | 1.228,04 | 26,70 | 2 |
| 2010 | 60 | 1.209,85 | 20,16 | 2 |
| 2011 | 44 | 996,74 | 22,65 | 1 |
| 2012 | 62 | 1.275,54 | 20,57 | 2 |
| 2013 | 75 | 1.403,74 | 18,72 | 2 |
| 2014 | 54 | 1.313,70 | 24,33 | 2 |
| 2015 | 50 | 1.259,71 | 25,19 | 2 |
| 2016 | 60 | 1.643,74 | 27,40 | 2 |
| 2017 | 58 | 1.301,37 | 22,44 | 2 |
| 2018 | 32 | 614,60 | 19,21 | 1 |
| 2019 | 25 | 458,59 | 18,34 | 1 |
| 2020 | 26 | 531,05 | 20,43 | 1 |
| 2021 | 40 | 877,95 | 21,95 | 2 |
| 2022 | 38 | 1.185,95 | 31,21 | 2 |
| 2023 | 19 | 329,90 | 17,36 | 1 |
| 2024 | 38 | 658,51 | 17,33 | 1 |
| totale | 933 | 20.599,87 | 22,08 | 30 |