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

2??????????

3??????

4???????

5?????????

??12?????19???????????? (?????????? ?????????????????????)???19????,?????

????,???,??????????????????????49.9%?????????????????????????????????????????,?????????????,???

??????????????,????,???????????,????????????????????,?????????????????,??????????????????????????????????????

?????,??,???????????,??????????????

???????????????????,???????,?????11????????????????44.3????????,???3.5%?(??) ????????????????????:????????