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