| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 104 | 1.844,97 | 17,74 | 2 |
| 2008 | 33 | 696,45 | 21,10 | 2 |
| 2009 | 58 | 1.252,32 | 21,59 | 3 |
| 2010 | 127 | 2.332,62 | 18,37 | 4 |
| 2011 | 216 | 4.261,01 | 19,73 | 2 |
| 2012 | 354 | 6.673,98 | 18,85 | 3 |
| 2013 | 33 | 696,48 | 21,11 | 2 |
| 2014 | 43 | 1.138,23 | 26,47 | 2 |
| 2015 | 39 | 1.227,32 | 31,47 | 3 |
| 2016 | 47 | 1.311,40 | 27,90 | 3 |
| 2017 | 50 | 1.443,51 | 28,87 | 3 |
| 2018 | 55 | 1.315,79 | 23,92 | 3 |
| 2019 | 58 | 1.888,24 | 32,56 | 3 |
| 2020 | 55 | 1.823,71 | 33,16 | 3 |
| 2021 | 55 | 1.893,44 | 34,43 | 3 |
| 2022 | 52 | 1.521,01 | 29,25 | 3 |
| 2023 | 46 | 2.029,82 | 44,13 | 3 |
| 2024 | 56 | 1.449,30 | 25,88 | 4 |
| totale | 1.481 | 34.799,60 | 23,50 | 51 |