| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 172 | 2.914,26 | 16,94 | 2 |
| 2007 | 147 | 2.765,58 | 18,81 | 1 |
| 2008 | 269 | 5.189,28 | 19,29 | 1 |
| 2009 | 237 | 4.764,95 | 20,11 | 2 |
| 2010 | 211 | 4.142,96 | 19,63 | 2 |
| 2011 | 203 | 3.790,58 | 18,67 | 1 |
| 2012 | 212 | 3.960,67 | 18,68 | 2 |
| 2013 | 248 | 4.797,87 | 19,35 | 2 |
| 2014 | 262 | 5.649,54 | 21,56 | 2 |
| 2015 | 246 | 5.609,98 | 22,80 | 2 |
| 2016 | 279 | 6.423,21 | 23,02 | 2 |
| 2017 | 296 | 6.571,19 | 22,20 | 2 |
| 2018 | 289 | 6.150,53 | 21,28 | 2 |
| 2019 | 290 | 6.186,58 | 21,33 | 2 |
| 2020 | 280 | 6.213,08 | 22,19 | 2 |
| 2021 | 279 | 5.832,78 | 20,91 | 2 |
| 2022 | 264 | 5.956,36 | 22,56 | 2 |
| 2023 | 269 | 5.809,65 | 21,60 | 2 |
| 2024 | 269 | 5.712,06 | 21,23 | 2 |
| totale | 4.722 | 98.441,11 | 20,85 | 35 |