| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 151 | 2.907,42 | 19,25 | 2 |
| 2007 | 118 | 2.604,14 | 22,07 | 1 |
| 2008 | 117 | 2.500,08 | 21,37 | 1 |
| 2009 | 174 | 4.674,62 | 26,87 | 2 |
| 2010 | 218 | 4.430,79 | 20,32 | 2 |
| 2011 | 226 | 4.438,47 | 19,64 | 1 |
| 2012 | 293 | 4.721,24 | 16,11 | 2 |
| 2013 | 288 | 4.439,25 | 15,41 | 2 |
| 2014 | 293 | 5.564,05 | 18,99 | 3 |
| 2015 | 205 | 4.317,06 | 21,06 | 2 |
| 2016 | 31 | 849,44 | 27,40 | 2 |
| 2017 | 38 | 906,32 | 23,85 | 2 |
| 2018 | 27 | 747,39 | 27,68 | 2 |
| 2019 | 26 | 622,29 | 23,93 | 2 |
| 2020 | 22 | 483,55 | 21,98 | 2 |
| 2021 | 24 | 632,87 | 26,37 | 2 |
| 2022 | 1 | 25,31 | 25,31 | 1 |
| 2023 | 2 | 62,83 | 31,42 | 1 |
| 2024 | 8 | 351,98 | 44,00 | 2 |
| totale | 2.262 | 45.279,10 | 20,02 | 34 |