| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 365 | 7.446,59 | 20,40 | 2 |
| 2007 | 321 | 7.209,32 | 22,46 | 1 |
| 2008 | 551 | 12.163,87 | 22,08 | 1 |
| 2009 | 555 | 11.374,27 | 20,49 | 2 |
| 2010 | 621 | 11.202,88 | 18,04 | 2 |
| 2011 | 592 | 9.935,50 | 16,78 | 1 |
| 2012 | 712 | 13.779,55 | 19,35 | 2 |
| 2013 | 651 | 11.198,34 | 17,20 | 2 |
| 2014 | 416 | 9.700,00 | 23,32 | 2 |
| 2015 | 251 | 6.902,85 | 27,50 | 2 |
| 2016 | 284 | 7.116,72 | 25,06 | 2 |
| 2017 | 302 | 6.719,80 | 22,25 | 2 |
| 2018 | 311 | 6.787,31 | 21,82 | 2 |
| 2019 | 280 | 6.148,45 | 21,96 | 2 |
| 2020 | 260 | 5.766,09 | 22,18 | 2 |
| 2021 | 243 | 5.210,62 | 21,44 | 2 |
| 2022 | 206 | 4.997,11 | 24,26 | 2 |
| 2023 | 186 | 4.736,88 | 25,47 | 2 |
| 2024 | 162 | 4.089,58 | 25,24 | 2 |
| totale | 7.269 | 152.485,73 | 20,98 | 35 |