| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 38 | 755,15 | 19,87 | 1 |
| 2008 | 4 | 127,91 | 31,98 | 1 |
| 2009 | 88 | 2.283,08 | 25,94 | 2 |
| 2010 | 101 | 2.610,72 | 25,85 | 3 |
| 2011 | 131 | 3.926,12 | 29,97 | 2 |
| 2012 | 123 | 3.277,03 | 26,64 | 3 |
| 2013 | 142 | 3.168,46 | 22,31 | 3 |
| 2014 | 154 | 4.611,86 | 29,95 | 3 |
| 2015 | 136 | 4.358,64 | 32,05 | 3 |
| 2016 | 162 | 5.583,68 | 34,47 | 4 |
| 2017 | 148 | 5.033,02 | 34,01 | 4 |
| 2018 | 139 | 4.990,19 | 35,90 | 4 |
| 2019 | 150 | 4.784,15 | 31,89 | 4 |
| 2020 | 137 | 4.214,56 | 30,76 | 4 |
| 2021 | 163 | 5.074,58 | 31,13 | 4 |
| 2022 | 150 | 5.287,43 | 35,25 | 4 |
| 2023 | 140 | 4.208,26 | 30,06 | 4 |
| 2024 | 137 | 4.083,46 | 29,81 | 4 |
| totale | 2.243 | 68.378,30 | 30,49 | 57 |