??????? ??????????

????:???bz??:????600?????

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

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

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

??:?????????????