| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 38 | 568,43 | 14,96 | 1 |
| 2007 | 99 | 1.518,05 | 15,33 | 1 |
| 2008 | 84 | 1.556,26 | 18,53 | 1 |
| 2009 | 2 | 19,44 | 9,72 | 1 |
| 2010 | 47 | 729,35 | 15,52 | 2 |
| 2011 | 113 | 2.408,18 | 21,31 | 1 |
| 2012 | 84 | 1.516,92 | 18,06 | 2 |
| 2013 | 85 | 1.512,20 | 17,79 | 2 |
| 2014 | 87 | 1.949,86 | 22,41 | 2 |
| 2015 | 57 | 1.090,21 | 19,13 | 2 |
| 2016 | 56 | 1.070,84 | 19,12 | 2 |
| 2017 | 68 | 1.132,44 | 16,65 | 2 |
| 2018 | 53 | 961,57 | 18,14 | 2 |
| 2019 | 60 | 1.025,64 | 17,09 | 2 |
| 2020 | 57 | 860,73 | 15,10 | 2 |
| 2021 | 49 | 769,54 | 15,70 | 3 |
| 2022 | 36 | 683,62 | 18,99 | 3 |
| 2023 | 36 | 814,70 | 22,63 | 3 |
| 2024 | 33 | 538,41 | 16,32 | 3 |
| totale | 1.144 | 20.726,39 | 18,12 | 37 |