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

2????????????

3?????????

4?????????

5?????????

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

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

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

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