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

2????????

3????????

4??????

5??????????

????????10??????????1????????????? (???? ???)??30??????,?????????????,???????2304?????????????????,???23.7??????????,??????????????????????15.7%?15.3%?

?????,????15.7%????? ????

???,????????????????7??230?;??(????)???530?????????????,?????????????????????????????????????

?,??????????????????60????????????????????????,??????????

??,??????,????????????(??????)

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