| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 281 | 4.158,55 | 14,80 | 1 |
| 2008 | 132 | 2.247,21 | 17,02 | 1 |
| 2009 | 132 | 1.772,66 | 13,43 | 2 |
| 2010 | 145 | 1.853,45 | 12,78 | 2 |
| 2011 | 28 | 453,51 | 16,20 | 1 |
| 2012 | 106 | 1.604,63 | 15,14 | 2 |
| 2013 | 98 | 1.216,11 | 12,41 | 2 |
| 2014 | 98 | 1.515,43 | 15,46 | 2 |
| 2015 | 96 | 1.827,32 | 19,03 | 2 |
| 2016 | 66 | 1.170,14 | 17,73 | 2 |
| 2017 | 54 | 978,25 | 18,12 | 2 |
| 2018 | 49 | 902,02 | 18,41 | 2 |
| 2019 | 45 | 951,28 | 21,14 | 2 |
| 2020 | 49 | 1.142,37 | 23,31 | 2 |
| 2021 | 40 | 940,47 | 23,51 | 2 |
| 2022 | 50 | 1.236,68 | 24,73 | 2 |
| 2023 | 49 | 1.123,60 | 22,93 | 2 |
| 2024 | 53 | 892,29 | 16,84 | 3 |
| totale | 1.571 | 25.985,97 | 16,54 | 34 |