????31.9??????????????? ???14.5%

????:??????300:??????200??????

?????:???????????11??22???,?10????,??31.9????,??14.5%??????,????????????????7.9????,??48.0%;??4.9??????????,?????????????20.3%?110???,????????7181??,????8.3%;???4502??,???20.7%?

?????:????????