??????????????5???
????????? (?????????????? ????)?????????????,??????2?????8?????????,???50?????????????13????,????????????5.3?????,????75%,???????
??,????????????�?????????????????????�???,??,??,???????????
�?????????3????????,?????7500???????,????95%?�????,?????,?????????????????????,?�??�,????????,??????,?????????�??�,???????????????????????,?????????????????????????????????????????,???
???????????????,??????96.8%???????????2.2%????1%,???????????????????????,???????????????,????????????????????,????????????????????????????????? ???????:??????