| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 217 | 4.273,17 | 19,69 | 2 |
| 2007 | 130 | 3.104,45 | 23,88 | 1 |
| 2008 | 121 | 2.833,69 | 23,42 | 1 |
| 2009 | 158 | 3.268,32 | 20,69 | 2 |
| 2010 | 147 | 3.020,25 | 20,55 | 2 |
| 2011 | 104 | 2.111,84 | 20,31 | 1 |
| 2012 | 132 | 2.960,27 | 22,43 | 2 |
| 2013 | 140 | 5.137,54 | 36,70 | 2 |
| 2014 | 139 | 5.804,25 | 41,76 | 2 |
| 2015 | 154 | 6.214,22 | 40,35 | 3 |
| 2016 | 171 | 5.185,31 | 30,32 | 4 |
| 2017 | 175 | 4.742,88 | 27,10 | 4 |
| 2018 | 150 | 4.083,59 | 27,22 | 4 |
| 2019 | 149 | 4.138,17 | 27,77 | 4 |
| 2020 | 149 | 4.625,78 | 31,05 | 4 |
| 2021 | 145 | 4.019,22 | 27,72 | 4 |
| 2022 | 137 | 4.399,52 | 32,11 | 4 |
| 2023 | 131 | 4.069,08 | 31,06 | 4 |
| 2024 | 142 | 4.147,63 | 29,21 | 4 |
| totale | 2.791 | 78.139,18 | 28,00 | 54 |