| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 179 | 2.371,53 | 13,25 | 2 |
| 2007 | 145 | 2.061,39 | 14,22 | 1 |
| 2008 | 189 | 3.317,00 | 17,55 | 1 |
| 2009 | 139 | 2.365,00 | 17,01 | 2 |
| 2010 | 126 | 1.795,64 | 14,25 | 2 |
| 2011 | 113 | 1.425,28 | 12,61 | 1 |
| 2012 | 110 | 1.419,88 | 12,91 | 2 |
| 2013 | 92 | 1.032,23 | 11,22 | 2 |
| 2014 | 128 | 1.566,43 | 12,24 | 3 |
| 2015 | 71 | 1.322,77 | 18,63 | 2 |
| 2016 | 24 | 238,92 | 9,96 | 2 |
| 2017 | 81 | 1.137,80 | 14,05 | 3 |
| 2018 | 67 | 994,95 | 14,85 | 3 |
| 2019 | 55 | 866,20 | 15,75 | 3 |
| 2020 | 41 | 696,21 | 16,98 | 3 |
| 2021 | 41 | 777,12 | 18,95 | 3 |
| 2022 | 14 | 178,43 | 12,75 | 2 |
| 2023 | 17 | 297,24 | 17,48 | 2 |
| 2024 | 32 | 455,23 | 14,23 | 3 |
| totale | 1.664 | 24.319,25 | 14,61 | 42 |