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