| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 213 | 5.370,97 | 25,22 | 2 |
| 2007 | 217 | 5.594,76 | 25,78 | 1 |
| 2008 | 157 | 4.747,03 | 30,24 | 1 |
| 2009 | 132 | 4.258,16 | 32,26 | 2 |
| 2010 | 121 | 3.208,16 | 26,51 | 2 |
| 2011 | 98 | 2.547,18 | 25,99 | 1 |
| 2012 | 92 | 2.570,69 | 27,94 | 2 |
| 2013 | 105 | 2.439,71 | 23,24 | 2 |
| 2014 | 102 | 3.572,91 | 35,03 | 2 |
| 2015 | 90 | 2.795,32 | 31,06 | 2 |
| 2016 | 70 | 2.027,69 | 28,97 | 2 |
| 2017 | 87 | 2.632,88 | 30,26 | 2 |
| 2018 | 76 | 2.617,20 | 34,44 | 2 |
| 2019 | 85 | 2.490,98 | 29,31 | 2 |
| 2020 | 92 | 2.854,01 | 31,02 | 2 |
| 2021 | 72 | 2.126,93 | 29,54 | 2 |
| 2022 | 64 | 1.836,05 | 28,69 | 2 |
| 2023 | 64 | 3.229,23 | 50,46 | 2 |
| 2024 | 60 | 1.661,53 | 27,69 | 2 |
| totale | 1.997 | 58.581,39 | 29,33 | 35 |