| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 182 | 3.824,08 | 21,01 | 4 |
| 2007 | 152 | 3.205,64 | 21,09 | 2 |
| 2008 | 246 | 6.771,21 | 27,53 | 4 |
| 2009 | 303 | 6.751,28 | 22,28 | 4 |
| 2010 | 287 | 6.239,43 | 21,74 | 4 |
| 2011 | 315 | 6.122,18 | 19,44 | 3 |
| 2012 | 307 | 6.434,41 | 20,96 | 4 |
| 2013 | 192 | 3.424,44 | 17,84 | 3 |
| 2014 | 267 | 6.722,77 | 25,18 | 4 |
| 2015 | 256 | 7.221,51 | 28,21 | 4 |
| 2016 | 249 | 8.391,29 | 33,70 | 4 |
| 2017 | 254 | 7.096,85 | 27,94 | 5 |
| 2018 | 235 | 6.063,45 | 25,80 | 5 |
| 2019 | 235 | 6.816,23 | 29,01 | 5 |
| 2020 | 211 | 6.330,46 | 30,00 | 5 |
| 2021 | 172 | 4.003,34 | 23,28 | 4 |
| 2022 | 156 | 3.774,94 | 24,20 | 4 |
| 2023 | 143 | 4.118,47 | 28,80 | 4 |
| 2024 | 124 | 3.016,64 | 24,33 | 3 |
| totale | 4.286 | 106.328,62 | 24,81 | 75 |