2??21??????,????,??????????

?,??,???????“??”??????????,???????????,??????,????,????????????????????????????????????????????????????????????????????????

????,??,??????????34.1??,??????3?????????????49%,?51%,???93.6%,??????????????????39%,????????????13%?????????????????????????????????,??????(???????????????)????????????????(??????????? ???)

?????????????:???????

??

??:???????????,??????????,??????????????