| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 25 | 396,04 | 15,84 | 1 |
| 2009 | 14 | 288,00 | 20,57 | 1 |
| 2010 | 153 | 2.677,15 | 17,50 | 2 |
| 2011 | 223 | 3.951,24 | 17,72 | 1 |
| 2012 | 8 | 167,24 | 20,91 | 1 |
| 2013 | 126 | 1.769,75 | 14,05 | 2 |
| 2014 | 18 | 421,63 | 23,42 | 2 |
| 2015 | 6 | 249,72 | 41,62 | 1 |
| 2016 | 5 | 201,85 | 40,37 | 1 |
| 2017 | 98 | 2.406,61 | 24,56 | 2 |
| 2018 | 45 | 924,25 | 20,54 | 2 |
| 2019 | 42 | 992,70 | 23,64 | 2 |
| 2020 | 30 | 725,59 | 24,19 | 2 |
| 2021 | 29 | 919,65 | 31,71 | 2 |
| 2022 | 20 | 485,42 | 24,27 | 2 |
| 2023 | 21 | 415,18 | 19,77 | 2 |
| 2024 | 28 | 711,08 | 25,40 | 2 |
| totale | 891 | 17.703,10 | 19,87 | 28 |