| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 260 | 6.301,22 | 24,24 | 3 |
| 2007 | 122 | 3.588,28 | 29,41 | 1 |
| 2008 | 167 | 4.302,81 | 25,77 | 2 |
| 2009 | 201 | 5.082,72 | 25,29 | 5 |
| 2010 | 186 | 4.651,82 | 25,01 | 5 |
| 2011 | 106 | 2.643,27 | 24,94 | 3 |
| 2012 | 134 | 2.895,71 | 21,61 | 4 |
| 2013 | 141 | 3.264,39 | 23,15 | 5 |
| 2014 | 174 | 5.191,79 | 29,84 | 6 |
| 2015 | 180 | 5.541,65 | 30,79 | 5 |
| 2016 | 178 | 5.595,25 | 31,43 | 6 |
| 2017 | 163 | 5.055,44 | 31,01 | 7 |
| 2018 | 147 | 4.378,96 | 29,79 | 7 |
| 2019 | 140 | 4.365,19 | 31,18 | 7 |
| 2020 | 124 | 4.230,91 | 34,12 | 7 |
| 2021 | 121 | 3.827,68 | 31,63 | 7 |
| 2022 | 119 | 3.792,32 | 31,87 | 6 |
| 2023 | 141 | 4.451,44 | 31,57 | 5 |
| 2024 | 121 | 4.050,97 | 33,48 | 6 |
| totale | 2.925 | 83.211,82 | 28,45 | 97 |