| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 53 | 925,47 | 17,46 | 1 |
| 2009 | 30 | 540,61 | 18,02 | 1 |
| 2010 | 111 | 1.686,73 | 15,20 | 2 |
| 2011 | 275 | 4.351,98 | 15,83 | 1 |
| 2012 | 364 | 7.017,31 | 19,28 | 2 |
| 2013 | 437 | 7.428,48 | 17,00 | 3 |
| 2014 | 150 | 4.134,89 | 27,57 | 3 |
| 2015 | 647 | 16.070,07 | 24,84 | 5 |
| 2016 | 910 | 21.155,73 | 23,25 | 5 |
| 2017 | 967 | 21.147,11 | 21,87 | 5 |
| 2018 | 917 | 19.806,45 | 21,60 | 5 |
| 2019 | 841 | 18.490,71 | 21,99 | 4 |
| 2020 | 702 | 16.707,80 | 23,80 | 4 |
| 2021 | 635 | 14.343,05 | 22,59 | 4 |
| 2022 | 627 | 13.722,68 | 21,89 | 4 |
| 2023 | 615 | 14.340,65 | 23,32 | 4 |
| 2024 | 605 | 13.474,99 | 22,27 | 4 |
| totale | 8.886 | 195.344,71 | 21,98 | 57 |