| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 57 | 1.794,50 | 31,48 | 3 |
| 2007 | 37 | 1.236,40 | 33,42 | 1 |
| 2008 | 33 | 976,72 | 29,60 | 1 |
| 2009 | 46 | 1.116,21 | 24,27 | 3 |
| 2010 | 66 | 1.548,11 | 23,46 | 2 |
| 2011 | 45 | 1.137,62 | 25,28 | 1 |
| 2012 | 61 | 1.739,22 | 28,51 | 2 |
| 2013 | 63 | 1.461,51 | 23,20 | 2 |
| 2014 | 56 | 1.924,21 | 34,36 | 2 |
| 2015 | 52 | 2.299,96 | 44,23 | 2 |
| 2016 | 54 | 1.773,73 | 32,85 | 2 |
| 2017 | 43 | 1.414,66 | 32,90 | 2 |
| 2018 | 39 | 1.288,66 | 33,04 | 2 |
| 2019 | 91 | 2.397,60 | 26,35 | 3 |
| 2020 | 79 | 2.305,03 | 29,18 | 3 |
| 2021 | 84 | 2.262,96 | 26,94 | 3 |
| 2022 | 17 | 392,42 | 23,08 | 1 |
| 2023 | 19 | 332,11 | 17,48 | 1 |
| 2024 | 14 | 321,86 | 22,99 | 1 |
| totale | 956 | 27.723,49 | 29,00 | 37 |