| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 54 | 1.023,26 | 18,95 | 1 |
| 2007 | 267 | 5.227,64 | 19,58 | 1 |
| 2008 | 179 | 3.724,42 | 20,81 | 1 |
| 2009 | 186 | 3.555,60 | 19,12 | 4 |
| 2010 | 228 | 3.956,08 | 17,35 | 4 |
| 2011 | 183 | 2.746,54 | 15,01 | 4 |
| 2012 | 224 | 3.072,66 | 13,72 | 5 |
| 2013 | 210 | 2.964,19 | 14,12 | 5 |
| 2014 | 163 | 3.045,87 | 18,69 | 4 |
| 2015 | 163 | 2.750,06 | 16,87 | 4 |
| 2016 | 162 | 2.642,99 | 16,31 | 4 |
| 2017 | 164 | 2.697,38 | 16,45 | 4 |
| 2018 | 197 | 4.406,82 | 22,37 | 4 |
| 2019 | 216 | 4.242,80 | 19,64 | 4 |
| 2020 | 179 | 4.103,21 | 22,92 | 4 |
| 2021 | 146 | 2.677,38 | 18,34 | 3 |
| 2022 | 142 | 2.425,00 | 17,08 | 2 |
| 2023 | 133 | 1.933,41 | 14,54 | 2 |
| 2024 | 144 | 2.302,24 | 15,99 | 2 |
| totale | 3.340 | 59.497,55 | 17,81 | 62 |