| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 95 | 1.621,77 | 17,07 | 1 |
| 2007 | 326 | 6.962,59 | 21,36 | 2 |
| 2008 | 163 | 3.662,52 | 22,47 | 1 |
| 2009 | 131 | 3.669,49 | 28,01 | 3 |
| 2010 | 190 | 4.054,80 | 21,34 | 2 |
| 2011 | 145 | 3.529,28 | 24,34 | 1 |
| 2012 | 201 | 4.554,09 | 22,66 | 3 |
| 2013 | 201 | 4.322,09 | 21,50 | 4 |
| 2014 | 160 | 4.061,02 | 25,38 | 3 |
| 2015 | 233 | 6.381,15 | 27,39 | 5 |
| 2016 | 311 | 8.856,33 | 28,48 | 7 |
| 2017 | 346 | 8.416,13 | 24,32 | 7 |
| 2018 | 341 | 8.550,93 | 25,08 | 7 |
| 2019 | 341 | 8.677,20 | 25,45 | 7 |
| 2020 | 303 | 7.751,82 | 25,58 | 7 |
| 2021 | 288 | 7.892,81 | 27,41 | 7 |
| 2022 | 198 | 5.944,94 | 30,02 | 7 |
| 2023 | 158 | 3.308,66 | 20,94 | 6 |
| 2024 | 203 | 4.336,66 | 21,36 | 7 |
| totale | 4.334 | 106.554,28 | 24,59 | 87 |