面积 2017年 2016 2015
TOP10 24.2% 18.7% 17%
TOP20 32.5% 25.2% 23.1%
TOP30 38.3% 29.4% 26.6%
TOP50 45.8% 35.3% 32.1%
TOP100 55.4% 44.8% 40%
TOP200 62.1% 52.8% --
金额 2017年 2016 2015
TOP10 15.4% 12.5% 11.4%
TOP20 20% 16.2% 14.7%
TOP30 23.5% 18.6% 17%
TOP50 27.6% 22.1% 20.1%
TOP100 32.9% 27.5% 24.9%
TOP200 36.6% 31.9% --