| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 128 | 3.153,20 | 24,63 | 2 |
| 2007 | 90 | 2.467,52 | 27,42 | 3 |
| 2008 | 109 | 3.093,24 | 28,38 | 3 |
| 2009 | 220 | 5.329,54 | 24,23 | 4 |
| 2010 | 192 | 5.627,38 | 29,31 | 4 |
| 2011 | 244 | 7.082,90 | 29,03 | 4 |
| 2012 | 246 | 6.759,68 | 27,48 | 6 |
| 2013 | 240 | 5.909,24 | 24,62 | 6 |
| 2014 | 249 | 7.133,40 | 28,65 | 7 |
| 2015 | 240 | 7.157,78 | 29,82 | 5 |
| 2016 | 200 | 5.590,36 | 27,95 | 5 |
| 2017 | 173 | 4.740,81 | 27,40 | 5 |
| 2018 | 187 | 6.093,53 | 32,59 | 6 |
| 2019 | 180 | 8.987,32 | 49,93 | 6 |
| 2020 | 177 | 7.401,87 | 41,82 | 7 |
| 2021 | 160 | 5.470,69 | 34,19 | 7 |
| 2022 | 161 | 5.779,74 | 35,90 | 6 |
| 2023 | 161 | 4.948,35 | 30,74 | 6 |
| 2024 | 156 | 4.957,82 | 31,78 | 6 |
| totale | 3.513 | 107.684,37 | 30,65 | 98 |