| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 215 | 8.469,68 | 39,39 | 4 |
| 2007 | 166 | 5.996,95 | 36,13 | 4 |
| 2008 | 143 | 4.246,27 | 29,69 | 3 |
| 2009 | 143 | 4.178,20 | 29,22 | 4 |
| 2010 | 149 | 3.685,92 | 24,74 | 4 |
| 2011 | 114 | 3.048,09 | 26,74 | 3 |
| 2012 | 142 | 3.297,73 | 23,22 | 4 |
| 2013 | 141 | 2.969,20 | 21,06 | 4 |
| 2014 | 160 | 4.928,36 | 30,80 | 4 |
| 2015 | 146 | 4.884,44 | 33,46 | 4 |
| 2016 | 124 | 4.963,98 | 40,03 | 4 |
| 2017 | 107 | 3.981,72 | 37,21 | 5 |
| 2018 | 108 | 3.755,17 | 34,77 | 5 |
| 2019 | 106 | 4.483,13 | 42,29 | 5 |
| 2020 | 106 | 4.364,44 | 41,17 | 5 |
| 2021 | 82 | 3.097,45 | 37,77 | 4 |
| 2022 | 43 | 2.015,56 | 46,87 | 2 |
| 2023 | 48 | 2.050,31 | 42,71 | 3 |
| 2024 | 53 | 2.038,90 | 38,47 | 3 |
| totale | 2.296 | 76.455,50 | 33,30 | 74 |