????:1???????????:??????????

2???????????

3?????????

4??????????

5????????

??????10????14???????????????????? (????? ?????)??????????14???????????,????????????4.62???????????????????,???????????????5.1%?

??,???????????????????????,???????????????????8.6%?13.4%;????????????????14.4%?34.3%?????,???????????????????????

??,?????????????????????????,????????????????????????????????????????????????????,????????????????????????,?????,??

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