| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 54 | 1.336,01 | 24,74 | 2 |
| 2007 | 41 | 1.258,31 | 30,69 | 1 |
| 2008 | 28 | 1.132,09 | 40,43 | 1 |
| 2009 | 33 | 949,70 | 28,78 | 3 |
| 2010 | 47 | 1.117,65 | 23,78 | 3 |
| 2011 | 33 | 809,74 | 24,54 | 2 |
| 2012 | 77 | 2.324,47 | 30,19 | 4 |
| 2013 | 92 | 1.556,82 | 16,92 | 3 |
| 2014 | 115 | 3.211,38 | 27,93 | 4 |
| 2015 | 106 | 2.739,60 | 25,85 | 5 |
| 2016 | 124 | 3.230,25 | 26,05 | 4 |
| 2017 | 127 | 3.293,60 | 25,93 | 4 |
| 2018 | 115 | 2.806,53 | 24,40 | 4 |
| 2019 | 123 | 3.307,76 | 26,89 | 4 |
| 2020 | 113 | 3.286,53 | 29,08 | 4 |
| 2021 | 93 | 2.366,18 | 25,44 | 3 |
| 2022 | 83 | 2.086,42 | 25,14 | 3 |
| 2023 | 92 | 3.216,58 | 34,96 | 4 |
| 2024 | 95 | 2.381,24 | 25,07 | 3 |
| totale | 1.591 | 42.410,86 | 26,66 | 61 |