??
??????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???????????????????????????