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