| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 244 | 5.276,80 | 21,63 | 3 |
| 2007 | 234 | 5.492,53 | 23,47 | 1 |
| 2008 | 236 | 5.904,44 | 25,02 | 1 |
| 2009 | 241 | 5.623,01 | 23,33 | 2 |
| 2010 | 245 | 5.008,53 | 20,44 | 2 |
| 2011 | 243 | 5.153,63 | 21,21 | 1 |
| 2012 | 250 | 5.890,19 | 23,56 | 2 |
| 2013 | 227 | 4.816,54 | 21,22 | 2 |
| 2014 | 175 | 5.132,55 | 29,33 | 2 |
| 2015 | 163 | 4.194,81 | 25,74 | 2 |
| 2016 | 168 | 5.183,49 | 30,85 | 2 |
| 2017 | 151 | 4.703,05 | 31,15 | 2 |
| 2018 | 138 | 3.878,96 | 28,11 | 3 |
| 2019 | 137 | 3.810,26 | 27,81 | 3 |
| 2020 | 130 | 3.623,93 | 27,88 | 3 |
| 2021 | 123 | 3.233,35 | 26,29 | 3 |
| 2022 | 122 | 3.543,58 | 29,05 | 3 |
| 2023 | 115 | 3.349,57 | 29,13 | 3 |
| 2024 | 143 | 3.740,18 | 26,16 | 3 |
| totale | 3.485 | 87.559,40 | 25,12 | 43 |