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