| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 46 | 692,40 | 15,05 | 1 |
| 2009 | 23 | 471,80 | 20,51 | 1 |
| 2010 | 20 | 366,84 | 18,34 | 1 |
| 2012 | 26 | 456,65 | 17,56 | 1 |
| 2013 | 18 | 245,88 | 13,66 | 1 |
| 2014 | 19 | 410,81 | 21,62 | 1 |
| 2015 | 10 | 226,35 | 22,64 | 1 |
| 2016 | 11 | 338,21 | 30,75 | 1 |
| 2017 | 7 | 210,69 | 30,10 | 1 |
| 2018 | 3 | 102,38 | 34,13 | 2 |
| 2019 | 3 | 100,16 | 33,39 | 2 |
| 2020 | 6 | 155,08 | 25,85 | 2 |
| 2021 | 3 | 87,69 | 29,23 | 2 |
| 2022 | 3 | 145,48 | 48,49 | 1 |
| 2023 | 6 | 215,87 | 35,98 | 2 |
| 2024 | 6 | 181,62 | 30,27 | 2 |
| totale | 210 | 4.407,91 | 20,99 | 22 |