| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 230 | 4.431,65 | 19,27 | 2 |
| 2007 | 246 | 7.088,18 | 28,81 | 3 |
| 2008 | 206 | 4.769,89 | 23,15 | 3 |
| 2009 | 186 | 3.995,49 | 21,48 | 4 |
| 2010 | 219 | 3.843,17 | 17,55 | 4 |
| 2011 | 215 | 3.743,75 | 17,41 | 4 |
| 2012 | 226 | 4.759,07 | 21,06 | 5 |
| 2013 | 207 | 4.604,81 | 22,25 | 4 |
| 2014 | 194 | 4.661,92 | 24,03 | 4 |
| 2015 | 170 | 3.882,44 | 22,84 | 5 |
| 2016 | 112 | 2.442,45 | 21,81 | 4 |
| 2017 | 97 | 2.201,35 | 22,69 | 3 |
| 2018 | 93 | 1.929,42 | 20,75 | 4 |
| 2019 | 101 | 2.131,21 | 21,10 | 4 |
| 2020 | 108 | 2.502,53 | 23,17 | 5 |
| 2021 | 119 | 2.800,71 | 23,54 | 5 |
| 2022 | 117 | 2.731,49 | 23,35 | 5 |
| 2023 | 132 | 3.058,97 | 23,17 | 6 |
| 2024 | 146 | 3.289,54 | 22,53 | 7 |
| totale | 3.124 | 68.868,04 | 22,04 | 81 |