| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 151 | 2.731,14 | 18,09 | 3 |
| 2007 | 27 | 601,52 | 22,28 | 1 |
| 2008 | 60 | 1.316,03 | 21,93 | 3 |
| 2009 | 67 | 1.644,86 | 24,55 | 3 |
| 2010 | 65 | 1.341,90 | 20,64 | 3 |
| 2011 | 62 | 1.254,05 | 20,23 | 2 |
| 2012 | 60 | 1.116,86 | 18,61 | 3 |
| 2013 | 26 | 426,21 | 16,39 | 2 |
| 2014 | 43 | 1.062,66 | 24,71 | 2 |
| 2015 | 35 | 834,04 | 23,83 | 2 |
| 2016 | 39 | 1.146,88 | 29,41 | 2 |
| 2017 | 41 | 1.139,87 | 27,80 | 2 |
| 2018 | 42 | 1.082,32 | 25,77 | 2 |
| 2019 | 24 | 535,78 | 22,32 | 1 |
| 2020 | 23 | 696,13 | 30,27 | 1 |
| 2021 | 19 | 485,55 | 25,56 | 1 |
| 2022 | 22 | 596,95 | 27,13 | 1 |
| 2023 | 19 | 446,84 | 23,52 | 1 |
| 2024 | 44 | 1.057,49 | 24,03 | 2 |
| totale | 869 | 19.517,08 | 22,46 | 37 |