??
????2???????????18??????? ??18?????????,1????,???3.69?,??12.1%?
????,??????,?????????????,??2.75?,????74.6%,???10.6%???????1446.17???????????,?17.6%,????????971???,?????????????18.9%?
?????,1????????????,????4.23???,?????????2884.72???????,??????????3.27?????,????2664.89???????,??????0.77???????????0.48?????,??10.9%???????????17.5%?
????,1??,??439?????,???3.7%,???18.3?????(?) ???:??????????
?????????
?????1??????????????12.1%?????????????