| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 147 | 4.328,04 | 29,44 | 2 |
| 2007 | 93 | 3.645,79 | 39,20 | 1 |
| 2008 | 167 | 5.458,86 | 32,69 | 2 |
| 2009 | 135 | 4.589,93 | 34,00 | 3 |
| 2010 | 123 | 3.791,02 | 30,82 | 3 |
| 2011 | 150 | 4.319,36 | 28,80 | 2 |
| 2012 | 139 | 4.097,19 | 29,48 | 4 |
| 2013 | 143 | 3.443,34 | 24,08 | 4 |
| 2014 | 142 | 4.479,94 | 31,55 | 4 |
| 2015 | 127 | 3.260,33 | 25,67 | 4 |
| 2016 | 148 | 3.808,97 | 25,74 | 4 |
| 2017 | 133 | 3.460,27 | 26,02 | 3 |
| 2018 | 116 | 3.066,00 | 26,43 | 3 |
| 2019 | 125 | 3.387,65 | 27,10 | 3 |
| 2020 | 119 | 3.380,07 | 28,40 | 3 |
| 2021 | 106 | 3.020,30 | 28,49 | 3 |
| 2022 | 112 | 3.516,12 | 31,39 | 3 |
| 2023 | 128 | 4.603,15 | 35,96 | 4 |
| 2024 | 137 | 4.975,22 | 36,32 | 4 |
| totale | 2.490 | 74.631,55 | 29,97 | 59 |