| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 401 | 5.301,03 | 13,22 | 2 |
| 2007 | 80 | 1.560,93 | 19,51 | 1 |
| 2008 | 130 | 2.740,86 | 21,08 | 2 |
| 2009 | 204 | 3.723,94 | 18,25 | 3 |
| 2010 | 286 | 4.484,15 | 15,68 | 4 |
| 2011 | 137 | 2.473,22 | 18,05 | 3 |
| 2012 | 259 | 4.887,82 | 18,87 | 5 |
| 2013 | 253 | 4.070,91 | 16,09 | 5 |
| 2014 | 261 | 4.912,74 | 18,82 | 6 |
| 2015 | 247 | 4.722,56 | 19,12 | 6 |
| 2016 | 206 | 4.493,53 | 21,81 | 5 |
| 2017 | 238 | 4.993,45 | 20,98 | 5 |
| 2018 | 233 | 4.707,06 | 20,20 | 4 |
| 2019 | 235 | 4.623,25 | 19,67 | 4 |
| 2020 | 251 | 5.450,08 | 21,71 | 4 |
| 2021 | 232 | 5.154,39 | 22,22 | 4 |
| 2022 | 131 | 2.863,26 | 21,86 | 5 |
| 2023 | 175 | 3.882,41 | 22,19 | 5 |
| 2024 | 239 | 4.891,13 | 20,46 | 5 |
| totale | 4.198 | 79.936,72 | 19,04 | 78 |