2007-12-28至今幅度跌80％跌70％跌60％跌50％跌40%跌30%跌涨总家数家数9660211151358145815021547171564比例6.14%38.49%71.29%86.83%93.22%96.04%98.91%1.09% 说明：跌N%家数指跌幅大于N%的家数，按收盘价计算