| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 455 | 5.720,81 | 12,57 | 2 |
| 2007 | 265 | 4.421,83 | 16,69 | 1 |
| 2008 | 253 | 6.031,28 | 23,84 | 1 |
| 2009 | 122 | 2.545,01 | 20,86 | 2 |
| 2010 | 89 | 1.683,14 | 18,91 | 2 |
| 2011 | 126 | 2.173,27 | 17,25 | 2 |
| 2012 | 132 | 2.379,89 | 18,03 | 3 |
| 2013 | 171 | 3.041,65 | 17,79 | 3 |
| 2014 | 161 | 3.268,23 | 20,30 | 3 |
| 2015 | 108 | 2.566,43 | 23,76 | 3 |
| 2016 | 92 | 2.191,89 | 23,82 | 4 |
| 2017 | 126 | 2.983,33 | 23,68 | 4 |
| 2018 | 75 | 2.152,81 | 28,70 | 3 |
| 2019 | 68 | 1.670,33 | 24,56 | 3 |
| 2020 | 63 | 1.751,53 | 27,80 | 3 |
| 2021 | 55 | 1.207,80 | 21,96 | 3 |
| 2022 | 52 | 1.179,63 | 22,69 | 3 |
| 2023 | 38 | 788,98 | 20,76 | 3 |
| 2024 | 36 | 628,98 | 17,47 | 3 |
| totale | 2.487 | 48.386,82 | 19,46 | 51 |