???????????????????????????????42?25????
????
?????????65???8.1%????60???2.3?????????????????????????
???????p?42?252610???60?????????21.92%15.94%13.52%???????51.38%??????
????
?????????????????????????????????????????p???????
??????????90%????70%???????????????ٳ??????????????
??
???????????????????74.06%???????ۜ?????????
?????????????????????????????????????????????
??????????????