| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 246 | 5.742,99 | 23,35 | 3 |
| 2007 | 154 | 4.565,77 | 29,65 | 2 |
| 2008 | 139 | 4.483,25 | 32,25 | 2 |
| 2009 | 135 | 4.725,04 | 35,00 | 3 |
| 2010 | 138 | 4.394,22 | 31,84 | 3 |
| 2011 | 126 | 3.631,73 | 28,82 | 2 |
| 2012 | 116 | 3.185,80 | 27,46 | 4 |
| 2013 | 125 | 3.079,85 | 24,64 | 3 |
| 2014 | 100 | 3.462,43 | 34,62 | 2 |
| 2015 | 116 | 3.874,84 | 33,40 | 3 |
| 2016 | 108 | 4.044,41 | 37,45 | 3 |
| 2017 | 132 | 4.768,12 | 36,12 | 4 |
| 2018 | 167 | 5.559,99 | 33,29 | 4 |
| 2019 | 173 | 5.219,13 | 30,17 | 4 |
| 2020 | 167 | 5.454,94 | 32,66 | 4 |
| 2021 | 174 | 6.184,25 | 35,54 | 4 |
| 2022 | 70 | 3.111,99 | 44,46 | 3 |
| 2023 | 154 | 4.759,44 | 30,91 | 5 |
| 2024 | 209 | 5.283,95 | 25,28 | 5 |
| totale | 2.749 | 85.532,14 | 31,11 | 63 |