| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 59 | 1.450,82 | 24,59 | 2 |
| 2007 | 41 | 1.336,43 | 32,60 | 1 |
| 2008 | 105 | 4.427,22 | 42,16 | 1 |
| 2009 | 47 | 1.461,69 | 31,10 | 2 |
| 2010 | 43 | 1.096,09 | 25,49 | 2 |
| 2011 | 31 | 994,09 | 32,07 | 1 |
| 2012 | 36 | 1.283,56 | 35,65 | 2 |
| 2013 | 32 | 1.267,48 | 39,61 | 2 |
| 2014 | 23 | 1.467,75 | 63,82 | 2 |
| 2015 | 20 | 1.009,70 | 50,49 | 2 |
| 2016 | 24 | 993,63 | 41,40 | 2 |
| 2017 | 25 | 663,51 | 26,54 | 2 |
| 2018 | 18 | 591,45 | 32,86 | 2 |
| 2019 | 24 | 654,51 | 27,27 | 2 |
| 2020 | 18 | 701,99 | 39,00 | 2 |
| 2021 | 15 | 528,85 | 35,26 | 2 |
| 2022 | 11 | 457,13 | 41,56 | 2 |
| 2023 | 10 | 389,50 | 38,95 | 2 |
| 2024 | 9 | 348,51 | 38,72 | 2 |
| totale | 591 | 21.123,91 | 35,74 | 35 |