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

2???????????

3???600??

4?????

5????????????

????????????????11??22?? ??,11??22?,???1~10????????????

???????10???????,??31.9????????????,????14.5%???,????7.9?,?48.0%;???4.9????????????,????????????20.3%?

1~10????,???2880??,???128????????;??7181??,??8.3%;??????????4502????,??20.7%?

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