| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2009 | 32 | 880,67 | 27,52 | 1 |
| 2010 | 29 | 416,49 | 14,36 | 2 |
| 2011 | 1 | 9,24 | 9,24 | 1 |
| 2012 | 45 | 779,41 | 17,32 | 2 |
| 2013 | 45 | 735,77 | 16,35 | 3 |
| 2014 | 45 | 730,25 | 16,23 | 3 |
| 2015 | 43 | 786,49 | 18,29 | 2 |
| 2016 | 54 | 1.004,47 | 18,60 | 2 |
| 2017 | 64 | 1.359,75 | 21,25 | 3 |
| 2018 | 53 | 1.158,60 | 21,86 | 2 |
| 2019 | 43 | 968,24 | 22,52 | 2 |
| 2020 | 41 | 761,38 | 18,57 | 2 |
| 2021 | 33 | 646,86 | 19,60 | 2 |
| totale | 528 | 10.237,62 | 19,39 | 27 |