| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 216 | 4.120,60 | 19,08 | 2 |
| 2007 | 182 | 3.768,54 | 20,71 | 1 |
| 2008 | 176 | 3.826,01 | 21,74 | 1 |
| 2009 | 215 | 4.322,64 | 20,11 | 2 |
| 2010 | 245 | 4.189,00 | 17,10 | 2 |
| 2011 | 220 | 3.454,45 | 15,70 | 1 |
| 2012 | 261 | 4.721,37 | 18,09 | 2 |
| 2013 | 260 | 4.115,02 | 15,83 | 2 |
| 2014 | 237 | 4.729,66 | 19,96 | 2 |
| 2015 | 278 | 5.801,74 | 20,87 | 3 |
| 2016 | 262 | 5.698,06 | 21,75 | 3 |
| 2017 | 237 | 5.254,55 | 22,17 | 3 |
| 2018 | 222 | 5.011,30 | 22,57 | 3 |
| 2019 | 214 | 4.652,52 | 21,74 | 3 |
| 2020 | 189 | 4.397,75 | 23,27 | 3 |
| 2021 | 172 | 3.566,72 | 20,74 | 3 |
| 2022 | 157 | 3.583,68 | 22,83 | 3 |
| 2023 | 169 | 3.605,23 | 21,33 | 5 |
| 2024 | 187 | 3.566,68 | 19,07 | 5 |
| totale | 4.099 | 82.385,52 | 20,10 | 49 |