| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 144 | 3.208,49 | 22,28 | 2 |
| 2007 | 52 | 1.548,94 | 29,79 | 3 |
| 2008 | 58 | 1.886,32 | 32,52 | 3 |
| 2009 | 157 | 4.117,49 | 26,23 | 4 |
| 2010 | 113 | 2.457,10 | 21,74 | 4 |
| 2011 | 92 | 1.847,50 | 20,08 | 2 |
| 2012 | 106 | 2.450,22 | 23,12 | 3 |
| 2013 | 115 | 2.359,66 | 20,52 | 3 |
| 2014 | 104 | 2.269,44 | 21,82 | 3 |
| 2015 | 137 | 3.334,10 | 24,34 | 4 |
| 2016 | 124 | 3.240,45 | 26,13 | 5 |
| 2017 | 125 | 3.214,76 | 25,72 | 5 |
| 2018 | 111 | 2.564,90 | 23,11 | 5 |
| 2019 | 119 | 2.835,34 | 23,83 | 5 |
| 2020 | 152 | 3.751,89 | 24,68 | 6 |
| 2021 | 155 | 3.638,32 | 23,47 | 6 |
| 2022 | 151 | 3.526,84 | 23,36 | 6 |
| 2023 | 141 | 3.535,20 | 25,07 | 6 |
| 2024 | 143 | 3.299,89 | 23,08 | 6 |
| totale | 2.299 | 55.086,85 | 23,96 | 81 |