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