??
??????1????????21?? (???????????????? ?)?A??????21????(?????????)???????????,??????????????,??????
????????,????????????????3.89%?????3.26%,?????????A????????????????,???????????20%???,???????????9%?
?????????????????????,??“1+N”???????????????????????????“1+N”?????,?100??,???????
?????,?:???????????????????????,??;?????,???;??????????????????????????????????????????,?????????????
??????,????????????????,???2.16%????????;???????,?????????????10%?
???????,?,??????3242????,?0.05%;?10305????,????????0.48%;????2112??,????0.36%?(?????????????) ???????????:????????
?????????
?????A???????????????????????????