?????? ????????

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

???(??):??,?????,???????

??,????????200??????????????????????6.2%??????4.5%?

??????,?????????????,????,????????????,?????????????????,???????????????????????

??????????????????,???????????????10%?????????????,??????????????700????????????????????

??2.7???????????????,?????????????1.5???????????????????

?????,??????????,?????????????????????????????“???”????,???,?? ???:??????