?? ???????????????????5.1%
????:1???????QQ?:????????
2???????????
3???????????
4??????????
5?????????
??10????14?? (??????????????????? ???????????????)?????????14?????,??????4.62??????,???????????????5.1%?
????????????????,???????????,????????8.6%?13.4%;??????????14.4%?34.3%??,???????????????????????????
??????????,???????????????????????,???????????????????,?????????,??????????????,??????????????????????????
????,???????????????????“?”???????????????????????,????????????????????(????????????) ?????????????????????:?????