| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 49 | 799,09 | 16,31 | 2 |
| 2007 | 32 | 532,04 | 16,63 | 1 |
| 2008 | 57 | 1.487,46 | 26,10 | 1 |
| 2009 | 45 | 1.135,91 | 25,24 | 2 |
| 2010 | 45 | 1.232,70 | 27,39 | 2 |
| 2011 | 30 | 612,23 | 20,41 | 1 |
| 2012 | 33 | 805,47 | 24,41 | 2 |
| 2013 | 25 | 429,96 | 17,20 | 2 |
| 2014 | 19 | 343,06 | 18,06 | 2 |
| 2015 | 17 | 439,75 | 25,87 | 2 |
| 2016 | 16 | 261,80 | 16,36 | 2 |
| 2017 | 10 | 178,14 | 17,81 | 2 |
| 2018 | 8 | 105,43 | 13,18 | 2 |
| 2019 | 5 | 147,00 | 29,40 | 2 |
| 2020 | 5 | 112,39 | 22,48 | 2 |
| 2021 | 4 | 7,51 | 1,88 | 2 |
| 2022 | 1 | 62,16 | 62,16 | 1 |
| 2023 | 1 | 60,33 | 60,33 | 1 |
| 2024 | 1 | 59,54 | 59,54 | 1 |
| totale | 403 | 8.811,97 | 21,87 | 32 |