?? ???31.9??????????????? ????14.5%
????:1?????????:?????50?
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%?
???:????