| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 56 | 767,22 | 13,70 | 2 |
| 2007 | 30 | 493,62 | 16,45 | 1 |
| 2008 | 33 | 612,50 | 18,56 | 1 |
| 2009 | 47 | 796,14 | 16,94 | 2 |
| 2010 | 35 | 539,29 | 15,41 | 2 |
| 2011 | 30 | 423,37 | 14,11 | 1 |
| 2012 | 45 | 621,29 | 13,81 | 2 |
| 2013 | 91 | 1.336,31 | 14,68 | 3 |
| 2014 | 84 | 1.567,07 | 18,66 | 3 |
| 2015 | 131 | 2.924,55 | 22,32 | 4 |
| 2016 | 143 | 3.505,63 | 24,51 | 4 |
| 2017 | 148 | 4.063,48 | 27,46 | 4 |
| 2018 | 168 | 5.610,97 | 33,40 | 4 |
| 2019 | 180 | 5.709,06 | 31,72 | 4 |
| 2020 | 164 | 5.396,97 | 32,91 | 4 |
| 2021 | 136 | 4.341,46 | 31,92 | 4 |
| 2022 | 103 | 3.788,01 | 36,78 | 3 |
| 2023 | 97 | 4.037,82 | 41,63 | 3 |
| 2024 | 97 | 3.759,92 | 38,76 | 3 |
| totale | 1.818 | 50.294,68 | 27,66 | 54 |