| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 183 | 5.777,23 | 31,57 | 2 |
| 2007 | 289 | 6.320,10 | 21,87 | 2 |
| 2008 | 430 | 7.943,77 | 18,47 | 3 |
| 2009 | 155 | 3.579,30 | 23,09 | 4 |
| 2010 | 202 | 4.828,60 | 23,90 | 4 |
| 2011 | 118 | 3.076,23 | 26,07 | 3 |
| 2012 | 172 | 3.706,47 | 21,55 | 4 |
| 2013 | 112 | 3.253,93 | 29,05 | 5 |
| 2014 | 132 | 4.066,32 | 30,81 | 5 |
| 2015 | 256 | 6.585,95 | 25,73 | 6 |
| 2016 | 294 | 6.767,11 | 23,02 | 6 |
| 2017 | 251 | 5.727,01 | 22,82 | 6 |
| 2018 | 319 | 6.136,14 | 19,24 | 7 |
| 2019 | 391 | 7.134,12 | 18,25 | 7 |
| 2020 | 378 | 6.373,86 | 16,86 | 7 |
| 2021 | 421 | 6.944,88 | 16,50 | 7 |
| 2022 | 279 | 5.539,09 | 19,85 | 6 |
| 2023 | 577 | 8.485,01 | 14,71 | 6 |
| 2024 | 488 | 7.239,96 | 14,84 | 6 |
| totale | 5.447 | 109.485,08 | 20,10 | 96 |