| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 214 | 4.812,97 | 22,49 | 3 |
| 2007 | 150 | 4.653,82 | 31,03 | 2 |
| 2008 | 146 | 4.011,77 | 27,48 | 2 |
| 2009 | 164 | 4.298,67 | 26,21 | 3 |
| 2010 | 165 | 4.313,95 | 26,15 | 3 |
| 2011 | 140 | 3.358,80 | 23,99 | 2 |
| 2012 | 154 | 4.820,99 | 31,31 | 5 |
| 2013 | 149 | 4.176,44 | 28,03 | 4 |
| 2014 | 147 | 5.463,57 | 37,17 | 4 |
| 2015 | 150 | 5.629,10 | 37,53 | 5 |
| 2016 | 130 | 3.989,65 | 30,69 | 4 |
| 2017 | 96 | 3.465,58 | 36,10 | 4 |
| 2018 | 86 | 3.089,79 | 35,93 | 4 |
| 2019 | 92 | 3.110,04 | 33,80 | 4 |
| 2020 | 66 | 1.919,14 | 29,08 | 3 |
| 2021 | 49 | 1.413,06 | 28,84 | 3 |
| 2022 | 42 | 1.716,16 | 40,86 | 3 |
| 2023 | 40 | 1.151,76 | 28,79 | 3 |
| 2024 | 36 | 888,69 | 24,69 | 3 |
| totale | 2.216 | 66.283,95 | 29,91 | 64 |