| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 70 | 1.184,43 | 16,92 | 2 |
| 2007 | 51 | 1.134,82 | 22,25 | 1 |
| 2008 | 26 | 555,81 | 21,38 | 1 |
| 2009 | 20 | 521,14 | 26,06 | 2 |
| 2010 | 130 | 2.988,53 | 22,99 | 4 |
| 2011 | 128 | 2.252,61 | 17,60 | 3 |
| 2012 | 134 | 2.212,15 | 16,51 | 4 |
| 2013 | 77 | 1.406,85 | 18,27 | 3 |
| 2014 | 82 | 1.750,70 | 21,35 | 3 |
| 2015 | 83 | 1.802,42 | 21,72 | 3 |
| 2016 | 86 | 1.991,98 | 23,16 | 3 |
| 2017 | 174 | 5.191,72 | 29,84 | 4 |
| 2018 | 154 | 3.335,32 | 21,66 | 4 |
| 2019 | 144 | 3.007,27 | 20,88 | 4 |
| 2020 | 126 | 3.065,57 | 24,33 | 4 |
| 2021 | 142 | 3.462,39 | 24,38 | 4 |
| 2022 | 115 | 4.301,02 | 37,40 | 3 |
| 2023 | 123 | 4.435,91 | 36,06 | 3 |
| 2024 | 116 | 3.447,96 | 29,72 | 3 |
| totale | 1.981 | 48.048,60 | 24,25 | 58 |