| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 114 | 1.581,18 | 13,87 | 2 |
| 2007 | 66 | 1.090,17 | 16,52 | 2 |
| 2008 | 50 | 907,87 | 18,16 | 2 |
| 2009 | 42 | 926,31 | 22,06 | 4 |
| 2010 | 35 | 526,30 | 15,04 | 3 |
| 2011 | 33 | 437,58 | 13,26 | 2 |
| 2012 | 36 | 849,54 | 23,60 | 3 |
| 2013 | 20 | 460,09 | 23,00 | 2 |
| 2014 | 24 | 953,97 | 39,75 | 2 |
| 2015 | 11 | 444,08 | 40,37 | 1 |
| 2016 | 12 | 309,06 | 25,76 | 1 |
| 2017 | 17 | 299,21 | 17,60 | 1 |
| 2018 | 13 | 202,17 | 15,55 | 1 |
| 2019 | 12 | 175,77 | 14,65 | 1 |
| 2020 | 9 | 149,92 | 16,66 | 1 |
| 2021 | 23 | 184,87 | 8,04 | 1 |
| 2022 | 21 | 558,18 | 26,58 | 2 |
| 2023 | 53 | 611,28 | 11,53 | 2 |
| 2024 | 51 | 624,17 | 12,24 | 4 |
| totale | 642 | 11.291,72 | 17,59 | 37 |