| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 316 | 5.884,65 | 18,62 | 2 |
| 2007 | 305 | 6.509,94 | 21,34 | 1 |
| 2008 | 299 | 6.035,24 | 20,18 | 1 |
| 2009 | 294 | 5.682,70 | 19,33 | 2 |
| 2010 | 283 | 4.589,22 | 16,22 | 2 |
| 2011 | 307 | 4.396,93 | 14,32 | 1 |
| 2012 | 298 | 4.817,04 | 16,16 | 2 |
| 2013 | 317 | 4.613,35 | 14,55 | 2 |
| 2014 | 310 | 5.842,17 | 18,85 | 2 |
| 2015 | 306 | 6.045,60 | 19,76 | 2 |
| 2016 | 263 | 5.439,16 | 20,68 | 3 |
| 2017 | 256 | 5.258,99 | 20,54 | 3 |
| 2018 | 263 | 5.114,59 | 19,45 | 2 |
| 2019 | 240 | 4.783,49 | 19,93 | 2 |
| 2020 | 222 | 4.930,90 | 22,21 | 2 |
| 2021 | 192 | 4.301,67 | 22,40 | 2 |
| 2022 | 25 | 507,39 | 20,30 | 1 |
| 2023 | 21 | 420,00 | 20,00 | 1 |
| 2024 | 80 | 1.396,94 | 17,46 | 2 |
| totale | 4.597 | 86.569,97 | 18,83 | 35 |