| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 104 | 2.477,97 | 23,83 | 2 |
| 2008 | 37 | 1.305,66 | 35,29 | 1 |
| 2009 | 63 | 1.916,70 | 30,42 | 2 |
| 2010 | 54 | 1.252,19 | 23,19 | 2 |
| 2011 | 30 | 602,87 | 20,10 | 1 |
| 2012 | 26 | 637,76 | 24,53 | 2 |
| 2013 | 22 | 456,10 | 20,73 | 2 |
| 2014 | 15 | 342,37 | 22,82 | 2 |
| 2015 | 25 | 616,17 | 24,65 | 2 |
| 2016 | 21 | 537,37 | 25,59 | 2 |
| 2017 | 29 | 590,94 | 20,38 | 2 |
| 2018 | 24 | 618,11 | 25,75 | 2 |
| 2019 | 26 | 713,09 | 27,43 | 2 |
| 2020 | 30 | 747,22 | 24,91 | 2 |
| 2021 | 26 | 552,71 | 21,26 | 2 |
| 2022 | 28 | 643,64 | 22,99 | 2 |
| 2023 | 39 | 703,39 | 18,04 | 2 |
| 2024 | 33 | 630,91 | 19,12 | 2 |
| totale | 632 | 15.345,17 | 24,28 | 34 |