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