?? ??????? ??????????
????:1???????:????
2?????
3??????????????
4?300?2?????
5?????????
?????????????????(?????):??,??,??,???
???????????????,???????????11???????,??????????5.8%????11??,?????????????80%???60%?????????????????,?,????????????????????????????8.7%???29.3%??????????,????????????????21????????????30%?????????????
?????????,11????,??50.3%,??????,???????????????????????,????,??????????
??:?????????????