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