1??????????????12.1%

????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????????????(???) ?????????:?????