| Anno | Firme | Importi | Media | Enti |
|---|---|---|---|---|
| 2006 | 320 | 6.607,01 | 20,65 | 3 |
| 2007 | 223 | 6.280,30 | 28,16 | 2 |
| 2008 | 215 | 6.520,24 | 30,33 | 2 |
| 2009 | 218 | 5.805,53 | 26,63 | 3 |
| 2010 | 210 | 4.956,49 | 23,60 | 3 |
| 2011 | 140 | 3.304,94 | 23,61 | 1 |
| 2012 | 208 | 5.131,27 | 24,67 | 3 |
| 2013 | 198 | 4.594,47 | 23,20 | 3 |
| 2014 | 137 | 3.872,33 | 28,27 | 2 |
| 2015 | 137 | 3.977,81 | 29,04 | 2 |
| 2016 | 142 | 4.365,93 | 30,75 | 3 |
| 2017 | 125 | 3.995,97 | 31,97 | 3 |
| 2018 | 105 | 3.577,48 | 34,07 | 3 |
| 2019 | 113 | 3.801,86 | 33,64 | 3 |
| 2020 | 112 | 3.743,50 | 33,42 | 3 |
| 2021 | 97 | 3.162,31 | 32,60 | 3 |
| 2022 | 82 | 3.280,35 | 40,00 | 3 |
| 2023 | 73 | 3.197,60 | 43,80 | 3 |
| 2024 | 69 | 3.375,18 | 48,92 | 3 |
| totale | 2.924 | 83.550,57 | 28,57 | 51 |