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