| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 159 | 2.799,60 | 17,61 | 1 |
| 2007 | 39 | 885,34 | 22,70 | 1 |
| 2008 | 33 | 718,53 | 21,77 | 1 |
| 2009 | 64 | 1.235,75 | 19,31 | 2 |
| 2010 | 68 | 1.161,15 | 17,08 | 2 |
| 2011 | 21 | 328,34 | 15,64 | 1 |
| 2012 | 44 | 885,14 | 20,12 | 2 |
| 2013 | 29 | 668,57 | 23,05 | 2 |
| 2014 | 29 | 816,45 | 28,15 | 1 |
| 2015 | 36 | 794,54 | 22,07 | 1 |
| 2016 | 39 | 763,42 | 19,57 | 1 |
| 2017 | 37 | 675,73 | 18,26 | 1 |
| 2018 | 35 | 744,95 | 21,28 | 1 |
| 2019 | 40 | 799,13 | 19,98 | 1 |
| 2020 | 42 | 966,74 | 23,02 | 1 |
| 2021 | 37 | 722,73 | 19,53 | 1 |
| 2022 | 28 | 549,06 | 19,61 | 1 |
| 2023 | 34 | 727,77 | 21,41 | 1 |
| 2024 | 45 | 589,14 | 13,09 | 3 |
| totale | 859 | 16.832,08 | 19,59 | 25 |