| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 343 | 6.926,90 | 20,20 | 5 |
| 2007 | 217 | 5.336,47 | 24,59 | 4 |
| 2008 | 220 | 6.450,83 | 29,32 | 4 |
| 2009 | 358 | 9.537,71 | 26,64 | 5 |
| 2010 | 279 | 6.383,92 | 22,88 | 4 |
| 2011 | 248 | 5.475,72 | 22,08 | 3 |
| 2012 | 225 | 4.444,11 | 19,75 | 4 |
| 2013 | 234 | 4.365,32 | 18,66 | 4 |
| 2014 | 246 | 6.102,66 | 24,81 | 4 |
| 2015 | 239 | 5.610,07 | 23,47 | 4 |
| 2016 | 244 | 6.335,83 | 25,97 | 4 |
| 2017 | 161 | 4.294,07 | 26,67 | 3 |
| 2018 | 149 | 3.979,36 | 26,71 | 3 |
| 2019 | 141 | 3.819,34 | 27,09 | 3 |
| 2020 | 152 | 3.846,82 | 25,31 | 3 |
| 2021 | 141 | 3.700,20 | 26,24 | 3 |
| 2022 | 143 | 3.564,20 | 24,92 | 3 |
| 2023 | 136 | 3.328,09 | 24,47 | 3 |
| 2024 | 142 | 3.254,10 | 22,92 | 4 |
| totale | 4.018 | 96.755,72 | 24,08 | 70 |