| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 77 | 1.649,49 | 21,42 | 1 |
| 2007 | 113 | 3.059,25 | 27,07 | 1 |
| 2008 | 120 | 3.888,32 | 32,40 | 2 |
| 2009 | 215 | 5.881,40 | 27,36 | 3 |
| 2010 | 166 | 4.229,51 | 25,48 | 3 |
| 2011 | 136 | 3.235,84 | 23,79 | 2 |
| 2012 | 137 | 3.279,26 | 23,94 | 3 |
| 2013 | 115 | 2.751,49 | 23,93 | 3 |
| 2014 | 101 | 3.009,45 | 29,80 | 3 |
| 2015 | 125 | 3.544,22 | 28,35 | 3 |
| 2016 | 95 | 2.982,08 | 31,39 | 2 |
| 2017 | 118 | 3.907,70 | 33,12 | 3 |
| 2018 | 98 | 3.166,16 | 32,31 | 3 |
| 2019 | 96 | 3.375,23 | 35,16 | 3 |
| 2020 | 85 | 2.629,08 | 30,93 | 3 |
| 2021 | 81 | 2.388,68 | 29,49 | 3 |
| 2022 | 23 | 710,17 | 30,88 | 2 |
| 2023 | 42 | 947,39 | 22,56 | 2 |
| 2024 | 35 | 945,31 | 27,01 | 2 |
| totale | 1.978 | 55.580,03 | 28,10 | 47 |