| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 127 | 2.578,93 | 20,31 | 2 |
| 2007 | 77 | 1.942,10 | 25,22 | 2 |
| 2008 | 76 | 2.263,01 | 29,78 | 2 |
| 2009 | 81 | 2.186,65 | 27,00 | 3 |
| 2010 | 79 | 1.772,42 | 22,44 | 3 |
| 2011 | 58 | 1.419,03 | 24,47 | 2 |
| 2012 | 88 | 1.900,72 | 21,60 | 3 |
| 2013 | 96 | 2.126,43 | 22,15 | 3 |
| 2014 | 99 | 2.645,06 | 26,72 | 3 |
| 2015 | 102 | 2.721,06 | 26,68 | 3 |
| 2016 | 87 | 2.455,80 | 28,23 | 3 |
| 2017 | 82 | 2.418,05 | 29,49 | 3 |
| 2018 | 87 | 2.417,48 | 27,79 | 3 |
| 2019 | 68 | 2.039,32 | 29,99 | 3 |
| 2020 | 70 | 2.497,42 | 35,68 | 3 |
| 2021 | 85 | 3.098,71 | 36,46 | 3 |
| 2022 | 85 | 2.969,40 | 34,93 | 3 |
| 2023 | 74 | 2.133,97 | 28,84 | 3 |
| 2024 | 37 | 827,53 | 22,37 | 2 |
| totale | 1.558 | 42.413,09 | 27,22 | 52 |