| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 226 | 4.414,46 | 19,53 | 4 |
| 2007 | 141 | 3.313,09 | 23,50 | 3 |
| 2008 | 169 | 4.062,83 | 24,04 | 2 |
| 2009 | 193 | 4.438,80 | 23,00 | 6 |
| 2010 | 232 | 4.383,78 | 18,90 | 6 |
| 2011 | 241 | 4.404,67 | 18,28 | 5 |
| 2012 | 221 | 3.698,27 | 16,73 | 4 |
| 2013 | 216 | 3.391,27 | 15,70 | 4 |
| 2014 | 214 | 4.261,93 | 19,92 | 3 |
| 2015 | 212 | 4.030,86 | 19,01 | 3 |
| 2016 | 212 | 4.367,91 | 20,60 | 3 |
| 2017 | 211 | 4.229,22 | 20,04 | 3 |
| 2018 | 198 | 3.702,61 | 18,70 | 3 |
| 2019 | 206 | 4.169,92 | 20,24 | 3 |
| 2020 | 186 | 4.318,26 | 23,22 | 3 |
| 2021 | 175 | 4.101,44 | 23,44 | 3 |
| 2022 | 173 | 4.103,47 | 23,72 | 3 |
| 2023 | 167 | 3.989,13 | 23,89 | 3 |
| 2024 | 174 | 3.799,50 | 21,84 | 4 |
| totale | 3.767 | 77.181,42 | 20,49 | 68 |