| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 253 | 5.877,92 | 23,23 | 2 |
| 2007 | 202 | 5.134,72 | 25,42 | 1 |
| 2008 | 205 | 5.288,18 | 25,80 | 1 |
| 2009 | 202 | 4.898,73 | 24,25 | 2 |
| 2010 | 203 | 4.321,18 | 21,29 | 2 |
| 2011 | 170 | 3.159,78 | 18,59 | 1 |
| 2012 | 170 | 3.461,86 | 20,36 | 2 |
| 2013 | 156 | 3.267,28 | 20,94 | 2 |
| 2014 | 150 | 4.604,49 | 30,70 | 2 |
| 2015 | 144 | 4.541,26 | 31,54 | 3 |
| 2016 | 127 | 3.870,61 | 30,48 | 3 |
| 2017 | 117 | 4.074,09 | 34,82 | 2 |
| 2018 | 107 | 3.279,49 | 30,65 | 3 |
| 2019 | 106 | 2.914,87 | 27,50 | 3 |
| 2020 | 101 | 2.913,67 | 28,85 | 3 |
| 2021 | 103 | 3.016,83 | 29,29 | 3 |
| 2022 | 93 | 2.940,97 | 31,62 | 2 |
| 2023 | 94 | 2.959,73 | 31,49 | 3 |
| 2024 | 102 | 3.100,08 | 30,39 | 3 |
| totale | 2.805 | 73.625,74 | 26,25 | 43 |