????:1?94?95?92?????:?????????????

2????????

3??????v

4???????????

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

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

?????,?????????????????11????,?????????5.8%???????????????11????????????,????????????80%????????????????????????60%????,??,????????????????????????????8.7%??????????29.3%???,??????????21????????????????30%????

??,11???,??50.3%,??,????????????????????,?????????,?????

??:???