??
????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%?????????????