| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 267 | 4.769,78 | 17,86 | 2 |
| 2009 | 158 | 3.199,67 | 20,25 | 3 |
| 2010 | 130 | 2.263,83 | 17,41 | 3 |
| 2011 | 109 | 1.489,40 | 13,66 | 2 |
| 2012 | 187 | 3.433,30 | 18,36 | 4 |
| 2013 | 203 | 3.670,94 | 18,08 | 4 |
| 2014 | 170 | 4.389,92 | 25,82 | 6 |
| 2015 | 169 | 4.680,28 | 27,69 | 5 |
| 2016 | 157 | 4.359,49 | 27,77 | 6 |
| 2017 | 143 | 3.919,99 | 27,41 | 6 |
| 2018 | 136 | 3.333,35 | 24,51 | 6 |
| 2019 | 142 | 3.765,58 | 26,52 | 6 |
| 2020 | 128 | 4.297,00 | 33,57 | 6 |
| 2021 | 137 | 3.819,81 | 27,88 | 6 |
| 2022 | 116 | 3.314,45 | 28,57 | 6 |
| 2023 | 113 | 2.874,28 | 25,44 | 6 |
| 2024 | 152 | 3.728,09 | 24,53 | 7 |
| totale | 2.617 | 61.309,16 | 23,43 | 84 |