| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 35 | 556,62 | 15,90 | 1 |
| 2007 | 35 | 682,90 | 19,51 | 1 |
| 2008 | 44 | 781,76 | 17,77 | 1 |
| 2009 | 118 | 3.753,80 | 31,81 | 3 |
| 2010 | 136 | 2.569,83 | 18,90 | 4 |
| 2011 | 136 | 2.488,05 | 18,29 | 2 |
| 2012 | 138 | 2.457,89 | 17,81 | 3 |
| 2013 | 48 | 868,69 | 18,10 | 2 |
| 2014 | 35 | 775,20 | 22,15 | 2 |
| 2015 | 36 | 691,96 | 19,22 | 2 |
| 2016 | 29 | 665,03 | 22,93 | 2 |
| 2017 | 26 | 607,88 | 23,38 | 2 |
| 2018 | 27 | 544,71 | 20,17 | 2 |
| 2019 | 26 | 478,69 | 18,41 | 2 |
| 2020 | 33 | 759,62 | 23,02 | 2 |
| 2021 | 31 | 609,73 | 19,67 | 2 |
| 2022 | 28 | 1.357,52 | 48,48 | 3 |
| 2023 | 28 | 1.371,86 | 49,00 | 3 |
| 2024 | 38 | 778,82 | 20,50 | 3 |
| totale | 1.027 | 22.800,56 | 22,20 | 42 |