| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 327 | 5.292,23 | 16,18 | 2 |
| 2007 | 69 | 1.732,16 | 25,10 | 2 |
| 2008 | 91 | 2.640,46 | 29,02 | 3 |
| 2009 | 243 | 5.961,28 | 24,53 | 4 |
| 2010 | 166 | 3.192,99 | 19,23 | 4 |
| 2011 | 169 | 2.835,76 | 16,78 | 3 |
| 2012 | 258 | 4.572,85 | 17,72 | 4 |
| 2013 | 273 | 4.413,61 | 16,17 | 4 |
| 2014 | 253 | 5.423,24 | 21,44 | 4 |
| 2015 | 232 | 4.803,50 | 20,70 | 3 |
| 2016 | 231 | 4.921,23 | 21,30 | 3 |
| 2017 | 268 | 6.097,37 | 22,75 | 3 |
| 2018 | 229 | 5.418,67 | 23,66 | 3 |
| 2019 | 230 | 4.778,80 | 20,78 | 3 |
| 2020 | 215 | 5.223,64 | 24,30 | 3 |
| 2021 | 179 | 4.261,90 | 23,81 | 3 |
| 2022 | 168 | 4.013,50 | 23,89 | 3 |
| 2023 | 185 | 3.796,98 | 20,52 | 3 |
| 2024 | 182 | 3.498,15 | 19,22 | 4 |
| totale | 3.968 | 82.878,32 | 20,89 | 61 |