| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 59 | 842,80 | 14,28 | 2 |
| 2007 | 12 | 291,03 | 24,25 | 1 |
| 2008 | 27 | 481,77 | 17,84 | 1 |
| 2009 | 45 | 765,15 | 17,00 | 2 |
| 2010 | 47 | 711,36 | 15,14 | 2 |
| 2011 | 29 | 391,35 | 13,49 | 2 |
| 2012 | 44 | 783,98 | 17,82 | 2 |
| 2013 | 38 | 543,65 | 14,31 | 2 |
| 2014 | 37 | 722,68 | 19,53 | 2 |
| 2015 | 28 | 523,69 | 18,70 | 2 |
| 2016 | 53 | 912,35 | 17,21 | 2 |
| 2017 | 42 | 853,79 | 20,33 | 2 |
| 2018 | 44 | 829,90 | 18,86 | 2 |
| 2019 | 42 | 798,35 | 19,01 | 2 |
| 2020 | 42 | 891,36 | 21,22 | 2 |
| 2021 | 38 | 892,96 | 23,50 | 2 |
| 2022 | 31 | 794,53 | 25,63 | 2 |
| 2023 | 35 | 742,06 | 21,20 | 2 |
| 2024 | 30 | 450,99 | 15,03 | 3 |
| totale | 723 | 13.223,75 | 18,29 | 37 |