| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 277 | 2.202,63 | 7,95 | 1 |
| 2009 | 5 | 140,23 | 28,05 | 1 |
| 2010 | 3 | 52,68 | 17,56 | 1 |
| 2011 | 325 | 4.362,67 | 13,42 | 2 |
| 2012 | 344 | 5.437,68 | 15,81 | 4 |
| 2013 | 269 | 3.287,04 | 12,22 | 4 |
| 2014 | 179 | 3.266,22 | 18,25 | 4 |
| 2015 | 114 | 1.801,68 | 15,80 | 5 |
| 2016 | 122 | 2.039,76 | 16,72 | 5 |
| 2017 | 58 | 873,63 | 15,06 | 3 |
| 2018 | 41 | 742,30 | 18,10 | 4 |
| 2019 | 23 | 415,07 | 18,05 | 4 |
| 2020 | 27 | 579,40 | 21,46 | 4 |
| 2021 | 24 | 463,61 | 19,32 | 4 |
| 2022 | 21 | 257,41 | 12,26 | 3 |
| 2023 | 23 | 177,46 | 7,72 | 2 |
| 2024 | 24 | 146,47 | 6,10 | 2 |
| totale | 1.879 | 26.245,94 | 13,97 | 53 |