| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 48 | 1.075,29 | 22,40 | 1 |
| 2007 | 46 | 2.115,43 | 45,99 | 1 |
| 2008 | 38 | 1.260,86 | 33,18 | 1 |
| 2009 | 54 | 1.564,53 | 28,97 | 2 |
| 2010 | 57 | 1.500,55 | 26,33 | 2 |
| 2011 | 39 | 892,05 | 22,87 | 1 |
| 2012 | 66 | 1.696,50 | 25,70 | 2 |
| 2013 | 59 | 1.336,16 | 22,65 | 2 |
| 2014 | 54 | 1.373,29 | 25,43 | 2 |
| 2015 | 48 | 1.132,17 | 23,59 | 2 |
| 2016 | 52 | 1.379,58 | 26,53 | 2 |
| 2017 | 55 | 1.350,18 | 24,55 | 2 |
| 2018 | 48 | 1.488,79 | 31,02 | 2 |
| 2019 | 36 | 909,12 | 25,25 | 2 |
| 2020 | 38 | 1.072,11 | 28,21 | 2 |
| 2021 | 27 | 725,26 | 26,86 | 2 |
| 2022 | 15 | 499,64 | 33,31 | 1 |
| 2023 | 8 | 322,01 | 40,25 | 1 |
| 2024 | 12 | 388,64 | 32,39 | 1 |
| totale | 800 | 22.082,16 | 27,60 | 31 |