| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 26 | 359,75 | 13,84 | 1 |
| 2008 | 15 | 173,70 | 11,58 | 1 |
| 2009 | 12 | 131,24 | 10,94 | 2 |
| 2010 | 34 | 437,92 | 12,88 | 2 |
| 2011 | 22 | 378,53 | 17,21 | 1 |
| 2012 | 15 | 272,43 | 18,16 | 2 |
| 2013 | 24 | 395,82 | 16,49 | 3 |
| 2014 | 18 | 330,19 | 18,34 | 2 |
| 2015 | 17 | 341,11 | 20,07 | 2 |
| 2016 | 18 | 354,51 | 19,70 | 2 |
| 2017 | 6 | 177,93 | 29,66 | 2 |
| 2018 | 7 | 270,25 | 38,61 | 2 |
| 2019 | 7 | 267,71 | 38,24 | 2 |
| 2020 | 9 | 145,60 | 16,18 | 2 |
| 2021 | 4 | 67,66 | 16,92 | 2 |
| 2022 | 3 | 68,12 | 22,71 | 2 |
| 2023 | 4 | 123,39 | 30,85 | 2 |
| 2024 | 8 | 259,71 | 32,46 | 2 |
| totale | 249 | 4.555,57 | 18,30 | 34 |