| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 394 | 12.475,44 | 31,66 | 2 |
| 2007 | 186 | 9.527,92 | 51,23 | 1 |
| 2008 | 163 | 7.827,40 | 48,02 | 1 |
| 2009 | 198 | 8.829,22 | 44,59 | 3 |
| 2010 | 187 | 6.176,03 | 33,03 | 2 |
| 2011 | 132 | 4.001,43 | 30,31 | 1 |
| 2012 | 178 | 5.276,89 | 29,65 | 2 |
| 2013 | 297 | 7.159,55 | 24,11 | 3 |
| 2014 | 288 | 7.463,74 | 25,92 | 3 |
| 2015 | 291 | 8.073,88 | 27,75 | 3 |
| 2016 | 292 | 8.179,77 | 28,01 | 2 |
| 2017 | 288 | 7.635,10 | 26,51 | 2 |
| 2018 | 246 | 6.004,28 | 24,41 | 2 |
| 2019 | 211 | 5.752,17 | 27,26 | 2 |
| 2020 | 225 | 6.096,59 | 27,10 | 3 |
| 2021 | 209 | 5.806,91 | 27,78 | 3 |
| 2022 | 60 | 1.387,69 | 23,13 | 2 |
| 2023 | 61 | 1.453,62 | 23,83 | 3 |
| 2024 | 60 | 1.997,68 | 33,29 | 3 |
| totale | 3.966 | 121.125,31 | 30,54 | 43 |