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