| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 128 | 2.168,27 | 16,94 | 1 |
| 2008 | 1.172 | 23.786,93 | 20,30 | 3 |
| 2009 | 35 | 597,64 | 17,08 | 1 |
| 2010 | 110 | 2.228,24 | 20,26 | 3 |
| 2011 | 118 | 1.875,44 | 15,89 | 1 |
| 2012 | 141 | 2.296,56 | 16,29 | 2 |
| 2013 | 58 | 872,78 | 15,05 | 3 |
| 2014 | 87 | 1.585,80 | 18,23 | 3 |
| 2015 | 42 | 991,57 | 23,61 | 4 |
| 2016 | 19 | 510,09 | 26,85 | 2 |
| 2017 | 18 | 484,35 | 26,91 | 2 |
| 2018 | 31 | 883,74 | 28,51 | 3 |
| 2019 | 26 | 528,69 | 20,33 | 3 |
| 2020 | 23 | 561,06 | 24,39 | 3 |
| 2021 | 10 | 386,03 | 38,60 | 3 |
| 2022 | 10 | 127,55 | 12,76 | 3 |
| 2023 | 12 | 147,37 | 12,28 | 3 |
| 2024 | 9 | 125,88 | 13,99 | 3 |
| totale | 2.049 | 40.157,99 | 19,60 | 46 |