| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 188 | 2.927,86 | 15,57 | 3 |
| 2007 | 119 | 2.621,81 | 22,03 | 3 |
| 2008 | 92 | 1.538,24 | 16,72 | 3 |
| 2009 | 144 | 2.109,85 | 14,65 | 3 |
| 2010 | 104 | 1.425,35 | 13,71 | 3 |
| 2011 | 71 | 1.072,12 | 15,10 | 2 |
| 2012 | 69 | 1.135,85 | 16,46 | 3 |
| 2013 | 118 | 1.987,92 | 16,85 | 3 |
| 2014 | 90 | 1.814,25 | 20,16 | 3 |
| 2015 | 87 | 1.735,14 | 19,94 | 3 |
| 2016 | 83 | 1.593,31 | 19,20 | 3 |
| 2017 | 65 | 1.075,52 | 16,55 | 2 |
| 2018 | 45 | 719,64 | 15,99 | 2 |
| 2019 | 41 | 724,63 | 17,67 | 2 |
| 2020 | 40 | 781,45 | 19,54 | 2 |
| 2021 | 14 | 342,51 | 24,47 | 2 |
| 2022 | 19 | 393,69 | 20,72 | 2 |
| 2023 | 16 | 347,16 | 21,70 | 2 |
| 2024 | 11 | 239,54 | 21,78 | 3 |
| totale | 1.416 | 24.585,84 | 17,36 | 49 |