| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 331 | 4.148,99 | 12,53 | 2 |
| 2007 | 352 | 4.801,90 | 13,64 | 1 |
| 2008 | 328 | 4.310,07 | 13,14 | 1 |
| 2009 | 315 | 4.276,88 | 13,58 | 2 |
| 2010 | 379 | 3.877,56 | 10,23 | 2 |
| 2011 | 143 | 1.476,59 | 10,33 | 1 |
| 2012 | 239 | 3.033,68 | 12,69 | 2 |
| 2013 | 125 | 1.641,19 | 13,13 | 2 |
| 2014 | 141 | 2.456,85 | 17,42 | 3 |
| 2015 | 78 | 1.334,31 | 17,11 | 2 |
| 2016 | 62 | 1.248,21 | 20,13 | 2 |
| 2017 | 63 | 1.381,21 | 21,92 | 3 |
| 2018 | 46 | 1.199,26 | 26,07 | 3 |
| 2019 | 30 | 992,17 | 33,07 | 4 |
| 2020 | 42 | 964,48 | 22,96 | 4 |
| 2021 | 25 | 781,02 | 31,24 | 4 |
| 2022 | 12 | 274,84 | 22,90 | 2 |
| 2023 | 12 | 237,91 | 19,83 | 3 |
| 2024 | 14 | 447,01 | 31,93 | 3 |
| totale | 2.737 | 38.884,13 | 14,21 | 46 |