| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 263 | 4.286,60 | 16,30 | 1 |
| 2007 | 134 | 4.106,74 | 30,65 | 1 |
| 2008 | 129 | 3.737,63 | 28,97 | 1 |
| 2009 | 161 | 3.725,27 | 23,14 | 2 |
| 2010 | 211 | 4.321,58 | 20,48 | 2 |
| 2011 | 171 | 4.151,21 | 24,28 | 1 |
| 2012 | 216 | 4.278,71 | 19,81 | 3 |
| 2013 | 253 | 5.715,90 | 22,59 | 3 |
| 2014 | 241 | 5.152,00 | 21,38 | 3 |
| 2015 | 243 | 5.746,74 | 23,65 | 3 |
| 2016 | 216 | 5.182,66 | 23,99 | 3 |
| 2017 | 215 | 5.083,36 | 23,64 | 3 |
| 2018 | 200 | 4.741,52 | 23,71 | 4 |
| 2019 | 207 | 4.908,10 | 23,71 | 4 |
| 2020 | 205 | 4.980,93 | 24,30 | 4 |
| 2021 | 184 | 4.446,08 | 24,16 | 4 |
| 2022 | 157 | 4.117,42 | 26,23 | 2 |
| 2023 | 164 | 3.898,58 | 23,77 | 2 |
| 2024 | 143 | 3.833,50 | 26,81 | 2 |
| totale | 3.713 | 86.414,53 | 23,27 | 48 |