??
????1??????????17? ?????????????,??????????????,???????28.2%,????“????????”????40.3%?
????:?????????,????????30%???“??”?
???????,????,“??????”?,???11.4%????,“??”?,???22.9%?
?1??10????????13?????,????18????????2000??????
???:??????????????????????????
??????????????:??28.2% ????“??”???????????????