| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 285 | 8.094,07 | 28,40 | 3 |
| 2008 | 108 | 4.037,99 | 37,39 | 1 |
| 2009 | 249 | 7.573,24 | 30,41 | 3 |
| 2010 | 274 | 6.860,75 | 25,04 | 5 |
| 2011 | 287 | 6.955,84 | 24,24 | 3 |
| 2012 | 312 | 7.513,53 | 24,08 | 5 |
| 2013 | 330 | 7.338,00 | 22,24 | 4 |
| 2014 | 298 | 8.444,61 | 28,34 | 5 |
| 2015 | 320 | 9.511,65 | 29,72 | 5 |
| 2016 | 310 | 9.024,12 | 29,11 | 6 |
| 2017 | 286 | 8.134,34 | 28,44 | 6 |
| 2018 | 284 | 8.398,35 | 29,57 | 6 |
| 2019 | 289 | 8.742,15 | 30,25 | 6 |
| 2020 | 242 | 8.209,23 | 33,92 | 6 |
| 2021 | 205 | 6.974,28 | 34,02 | 4 |
| 2022 | 146 | 5.318,85 | 36,43 | 4 |
| 2023 | 141 | 5.912,85 | 41,94 | 4 |
| 2024 | 135 | 6.612,63 | 48,98 | 4 |
| totale | 4.501 | 133.656,48 | 29,69 | 80 |