| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 320 | 6.919,58 | 21,62 | 3 |
| 2007 | 251 | 7.284,82 | 29,02 | 3 |
| 2008 | 164 | 5.190,89 | 31,65 | 2 |
| 2009 | 253 | 7.159,00 | 28,30 | 5 |
| 2010 | 285 | 6.573,30 | 23,06 | 6 |
| 2011 | 189 | 4.701,69 | 24,88 | 3 |
| 2012 | 250 | 5.387,15 | 21,55 | 4 |
| 2013 | 229 | 4.642,79 | 20,27 | 4 |
| 2014 | 299 | 8.851,35 | 29,60 | 5 |
| 2015 | 284 | 7.515,85 | 26,46 | 5 |
| 2016 | 312 | 8.957,95 | 28,71 | 5 |
| 2017 | 310 | 8.853,41 | 28,56 | 5 |
| 2018 | 319 | 9.203,01 | 28,85 | 5 |
| 2019 | 319 | 8.881,87 | 27,84 | 5 |
| 2020 | 299 | 8.693,78 | 29,08 | 5 |
| 2021 | 287 | 7.202,27 | 25,10 | 5 |
| 2022 | 181 | 4.521,90 | 24,98 | 4 |
| 2023 | 173 | 4.738,57 | 27,39 | 4 |
| 2024 | 167 | 3.830,01 | 22,93 | 4 |
| totale | 4.891 | 129.109,19 | 26,40 | 82 |