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