| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 22 | 661,45 | 30,07 | 1 |
| 2008 | 32 | 857,97 | 26,81 | 1 |
| 2009 | 24 | 603,36 | 25,14 | 2 |
| 2010 | 168 | 2.986,67 | 17,78 | 1 |
| 2011 | 127 | 2.816,18 | 22,17 | 2 |
| 2012 | 252 | 4.416,86 | 17,53 | 2 |
| 2013 | 193 | 4.131,60 | 21,41 | 3 |
| 2014 | 168 | 4.427,77 | 26,36 | 3 |
| 2015 | 160 | 4.213,58 | 26,33 | 3 |
| 2016 | 148 | 3.879,95 | 26,22 | 3 |
| 2017 | 136 | 3.533,77 | 25,98 | 3 |
| 2018 | 111 | 2.782,41 | 25,07 | 3 |
| 2019 | 127 | 3.137,78 | 24,71 | 3 |
| 2020 | 204 | 4.842,34 | 23,74 | 3 |
| 2021 | 175 | 4.136,02 | 23,63 | 3 |
| 2022 | 202 | 4.413,85 | 21,85 | 3 |
| 2023 | 188 | 4.275,13 | 22,74 | 3 |
| 2024 | 193 | 3.967,12 | 20,56 | 3 |
| totale | 2.630 | 60.083,81 | 22,85 | 45 |