| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 289 | 6.714,89 | 23,23 | 3 |
| 2007 | 176 | 6.099,35 | 34,66 | 3 |
| 2008 | 228 | 11.246,06 | 49,32 | 5 |
| 2009 | 195 | 9.415,45 | 48,28 | 5 |
| 2010 | 180 | 8.000,81 | 44,45 | 6 |
| 2011 | 251 | 7.881,13 | 31,40 | 5 |
| 2012 | 227 | 7.811,43 | 34,41 | 6 |
| 2013 | 280 | 8.801,82 | 31,44 | 6 |
| 2014 | 341 | 11.239,91 | 32,96 | 6 |
| 2015 | 412 | 12.805,18 | 31,08 | 6 |
| 2016 | 440 | 13.783,64 | 31,33 | 6 |
| 2017 | 410 | 13.403,25 | 32,69 | 6 |
| 2018 | 398 | 12.587,83 | 31,63 | 5 |
| 2019 | 308 | 10.718,14 | 34,80 | 4 |
| 2020 | 310 | 10.526,38 | 33,96 | 5 |
| 2021 | 272 | 10.136,33 | 37,27 | 5 |
| 2022 | 257 | 9.147,50 | 35,59 | 5 |
| 2023 | 237 | 8.459,51 | 35,69 | 4 |
| 2024 | 240 | 7.704,86 | 32,10 | 4 |
| totale | 5.451 | 186.483,47 | 34,21 | 95 |