????:1?????????:?????????

2??????

3???????

4???????

5????????????

??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?????(??) ?????:?????