| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 160 | 3.388,05 | 21,18 | 2 |
| 2007 | 196 | 4.876,59 | 24,88 | 2 |
| 2008 | 95 | 2.623,40 | 27,61 | 1 |
| 2009 | 90 | 2.106,39 | 23,40 | 2 |
| 2010 | 74 | 1.874,67 | 25,33 | 2 |
| 2011 | 181 | 3.365,74 | 18,60 | 2 |
| 2012 | 177 | 3.629,96 | 20,51 | 3 |
| 2013 | 164 | 3.207,01 | 19,55 | 3 |
| 2014 | 179 | 4.189,24 | 23,40 | 3 |
| 2015 | 172 | 4.113,20 | 23,91 | 3 |
| 2016 | 164 | 4.837,17 | 29,49 | 3 |
| 2017 | 165 | 3.977,03 | 24,10 | 3 |
| 2018 | 150 | 3.981,24 | 26,54 | 3 |
| 2019 | 148 | 3.689,85 | 24,93 | 3 |
| 2020 | 133 | 3.240,02 | 24,36 | 3 |
| 2021 | 124 | 2.911,66 | 23,48 | 3 |
| 2022 | 101 | 2.332,00 | 23,09 | 3 |
| 2023 | 90 | 2.369,49 | 26,33 | 3 |
| 2024 | 82 | 1.805,20 | 22,01 | 3 |
| totale | 2.645 | 62.517,91 | 23,64 | 50 |