?? ???31.9???? ???????????????14.5%
????:1??????300:??????
2???????????
3????????
4????????
5???????
????:??11????????22???????,????????????????10????,?????31.9??,????14.5%?????,?7.9????,??48.0%;?????4.9?????????????,??20.3%?110??,???????????7181??,???8.3%;???4502??????????,???20.7%?
????:???