| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 135 | 4.323,62 | 32,03 | 3 |
| 2007 | 82 | 3.078,90 | 37,55 | 2 |
| 2008 | 62 | 2.404,10 | 38,78 | 2 |
| 2009 | 84 | 2.634,84 | 31,37 | 3 |
| 2010 | 81 | 2.243,78 | 27,70 | 3 |
| 2011 | 31 | 1.038,72 | 33,51 | 1 |
| 2012 | 118 | 6.566,94 | 55,65 | 4 |
| 2013 | 85 | 2.180,84 | 25,66 | 3 |
| 2014 | 67 | 2.132,37 | 31,83 | 3 |
| 2015 | 73 | 2.316,06 | 31,73 | 3 |
| 2016 | 74 | 2.261,84 | 30,57 | 3 |
| 2017 | 68 | 2.025,02 | 29,78 | 3 |
| 2018 | 55 | 1.804,89 | 32,82 | 4 |
| 2019 | 66 | 2.057,47 | 31,17 | 4 |
| 2020 | 63 | 2.177,33 | 34,56 | 4 |
| 2021 | 66 | 2.299,63 | 34,84 | 4 |
| 2022 | 50 | 1.658,50 | 33,17 | 4 |
| 2023 | 54 | 1.647,73 | 30,51 | 4 |
| 2024 | 69 | 1.982,18 | 28,73 | 4 |
| totale | 1.383 | 46.834,76 | 33,86 | 61 |