| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 336 | 5.509,72 | 16,40 | 3 |
| 2007 | 202 | 3.765,78 | 18,64 | 3 |
| 2008 | 279 | 5.257,16 | 18,84 | 3 |
| 2009 | 342 | 6.834,18 | 19,98 | 5 |
| 2010 | 340 | 5.464,44 | 16,07 | 4 |
| 2011 | 278 | 4.712,53 | 16,95 | 3 |
| 2012 | 239 | 4.454,98 | 18,64 | 3 |
| 2013 | 99 | 1.798,76 | 18,17 | 3 |
| 2014 | 208 | 3.564,74 | 17,14 | 4 |
| 2015 | 225 | 4.474,66 | 19,89 | 5 |
| 2016 | 234 | 4.320,73 | 18,46 | 4 |
| 2017 | 251 | 4.826,66 | 19,23 | 4 |
| 2018 | 270 | 5.053,42 | 18,72 | 4 |
| 2019 | 261 | 4.950,27 | 18,97 | 4 |
| 2020 | 252 | 5.009,51 | 19,88 | 4 |
| 2021 | 239 | 4.988,86 | 20,87 | 4 |
| 2022 | 249 | 4.804,67 | 19,30 | 4 |
| 2023 | 226 | 4.453,33 | 19,71 | 4 |
| 2024 | 191 | 3.588,41 | 18,79 | 4 |
| totale | 4.721 | 87.832,81 | 18,60 | 72 |