| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 252 | 6.733,75 | 26,72 | 2 |
| 2007 | 94 | 2.579,32 | 27,44 | 1 |
| 2008 | 69 | 1.750,69 | 25,37 | 1 |
| 2009 | 124 | 3.078,53 | 24,83 | 2 |
| 2010 | 222 | 5.510,66 | 24,82 | 4 |
| 2011 | 169 | 3.905,88 | 23,11 | 3 |
| 2012 | 135 | 3.337,63 | 24,72 | 3 |
| 2013 | 172 | 4.382,59 | 25,48 | 3 |
| 2014 | 180 | 5.414,08 | 30,08 | 3 |
| 2015 | 171 | 5.110,46 | 29,89 | 4 |
| 2016 | 180 | 5.160,30 | 28,67 | 5 |
| 2017 | 170 | 5.061,11 | 29,77 | 6 |
| 2018 | 168 | 4.932,96 | 29,36 | 5 |
| 2019 | 176 | 4.919,66 | 27,95 | 5 |
| 2020 | 176 | 5.501,97 | 31,26 | 5 |
| 2021 | 193 | 5.871,48 | 30,42 | 5 |
| 2022 | 183 | 5.397,46 | 29,49 | 5 |
| 2023 | 169 | 5.148,91 | 30,47 | 5 |
| 2024 | 164 | 4.415,37 | 26,92 | 5 |
| totale | 3.167 | 88.212,81 | 27,85 | 72 |