| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 116 | 2.219,72 | 19,14 | 4 |
| 2007 | 14 | 295,07 | 21,08 | 1 |
| 2008 | 26 | 425,41 | 16,36 | 1 |
| 2009 | 68 | 1.267,55 | 18,64 | 3 |
| 2010 | 93 | 1.341,09 | 14,42 | 3 |
| 2012 | 76 | 806,04 | 10,61 | 2 |
| 2013 | 54 | 673,73 | 12,48 | 1 |
| 2014 | 17 | 286,21 | 16,84 | 1 |
| 2015 | 22 | 317,48 | 14,43 | 1 |
| 2016 | 17 | 262,51 | 15,44 | 1 |
| 2017 | 29 | 366,04 | 12,62 | 1 |
| 2018 | 28 | 476,63 | 17,02 | 1 |
| 2019 | 35 | 558,90 | 15,97 | 1 |
| 2020 | 29 | 512,19 | 17,66 | 1 |
| 2021 | 26 | 463,96 | 17,84 | 1 |
| 2022 | 22 | 387,20 | 17,60 | 1 |
| 2023 | 24 | 379,27 | 15,80 | 1 |
| 2024 | 54 | 984,82 | 18,24 | 4 |
| totale | 750 | 12.023,82 | 16,03 | 29 |