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