| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 117 | 2.618,75 | 22,38 | 2 |
| 2008 | 35 | 991,11 | 28,32 | 1 |
| 2009 | 43 | 879,50 | 20,45 | 2 |
| 2010 | 49 | 1.022,61 | 20,87 | 2 |
| 2011 | 17 | 388,59 | 22,86 | 1 |
| 2012 | 65 | 2.184,93 | 33,61 | 2 |
| 2013 | 56 | 1.881,13 | 33,59 | 2 |
| 2014 | 52 | 2.300,43 | 44,24 | 2 |
| 2015 | 61 | 1.855,54 | 30,42 | 2 |
| 2016 | 62 | 1.902,94 | 30,69 | 2 |
| 2017 | 57 | 1.820,73 | 31,94 | 2 |
| 2018 | 54 | 2.425,33 | 44,91 | 2 |
| 2019 | 49 | 2.195,07 | 44,80 | 2 |
| 2020 | 48 | 1.192,21 | 24,84 | 2 |
| 2021 | 45 | 1.026,25 | 22,81 | 2 |
| 2022 | 31 | 653,76 | 21,09 | 1 |
| 2023 | 24 | 559,71 | 23,32 | 1 |
| 2024 | 20 | 359,34 | 17,97 | 1 |
| totale | 885 | 26.257,93 | 29,67 | 31 |