| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 213 | 4.108,88 | 19,29 | 3 |
| 2007 | 160 | 4.261,37 | 26,63 | 2 |
| 2008 | 173 | 4.119,21 | 23,81 | 2 |
| 2009 | 213 | 4.659,87 | 21,88 | 3 |
| 2010 | 202 | 3.987,42 | 19,74 | 3 |
| 2011 | 125 | 2.855,83 | 22,85 | 2 |
| 2012 | 156 | 3.109,39 | 19,93 | 3 |
| 2013 | 148 | 2.612,12 | 17,65 | 3 |
| 2014 | 54 | 1.071,26 | 19,84 | 2 |
| 2015 | 139 | 2.912,38 | 20,95 | 3 |
| 2016 | 131 | 2.879,83 | 21,98 | 3 |
| 2017 | 137 | 2.891,74 | 21,11 | 3 |
| 2018 | 130 | 2.838,06 | 21,83 | 3 |
| 2019 | 132 | 3.262,07 | 24,71 | 3 |
| 2020 | 134 | 4.348,93 | 32,45 | 3 |
| 2021 | 134 | 3.619,89 | 27,01 | 3 |
| 2022 | 141 | 3.816,97 | 27,07 | 3 |
| 2023 | 179 | 5.023,14 | 28,06 | 3 |
| 2024 | 193 | 5.599,12 | 29,01 | 3 |
| totale | 2.894 | 67.977,48 | 23,49 | 53 |