| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 391 | 9.783,96 | 25,02 | 2 |
| 2007 | 150 | 4.146,53 | 27,64 | 2 |
| 2008 | 126 | 4.186,07 | 33,22 | 2 |
| 2009 | 164 | 4.824,57 | 29,42 | 3 |
| 2010 | 188 | 5.544,37 | 29,49 | 4 |
| 2011 | 112 | 2.713,37 | 24,23 | 2 |
| 2012 | 171 | 3.894,47 | 22,77 | 3 |
| 2013 | 155 | 3.561,12 | 22,97 | 3 |
| 2014 | 131 | 4.285,94 | 32,72 | 2 |
| 2015 | 148 | 3.768,59 | 25,46 | 3 |
| 2016 | 150 | 3.747,33 | 24,98 | 3 |
| 2017 | 139 | 3.603,38 | 25,92 | 3 |
| 2018 | 123 | 3.866,46 | 31,43 | 3 |
| 2019 | 120 | 3.188,86 | 26,57 | 3 |
| 2020 | 97 | 2.809,81 | 28,97 | 3 |
| 2021 | 87 | 2.105,38 | 24,20 | 3 |
| 2022 | 63 | 1.498,17 | 23,78 | 2 |
| 2023 | 67 | 1.364,69 | 20,37 | 2 |
| 2024 | 63 | 1.280,96 | 20,33 | 2 |
| totale | 2.645 | 70.174,03 | 26,53 | 50 |