| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 452 | 8.412,68 | 18,61 | 3 |
| 2007 | 54 | 2.011,00 | 37,24 | 2 |
| 2008 | 120 | 3.869,37 | 32,24 | 2 |
| 2009 | 210 | 5.245,89 | 24,98 | 2 |
| 2010 | 227 | 5.743,90 | 25,30 | 4 |
| 2011 | 163 | 4.203,14 | 25,79 | 3 |
| 2012 | 295 | 6.276,33 | 21,28 | 3 |
| 2013 | 302 | 7.335,02 | 24,29 | 4 |
| 2014 | 277 | 7.690,80 | 27,76 | 5 |
| 2015 | 306 | 8.484,45 | 27,73 | 5 |
| 2016 | 290 | 8.056,12 | 27,78 | 6 |
| 2017 | 307 | 8.245,83 | 26,86 | 7 |
| 2018 | 307 | 7.588,26 | 24,72 | 7 |
| 2019 | 231 | 6.079,65 | 26,32 | 5 |
| 2020 | 183 | 4.550,02 | 24,86 | 4 |
| 2021 | 118 | 2.369,75 | 20,08 | 3 |
| 2022 | 106 | 2.447,55 | 23,09 | 2 |
| 2023 | 151 | 3.116,03 | 20,64 | 4 |
| 2024 | 161 | 3.433,24 | 21,32 | 4 |
| totale | 4.260 | 105.159,03 | 24,69 | 75 |