??
?????????,???????????????????????????1???????????????????,?????????,?????
??,????1?????????10%,?????12.1%;??1????????????????11.89%,??????19.71%;??????????1?????????12.47%,??17.67%????????????1????????
?? ????:?,
????????,??????,????????????????,????????????
??,???????????????????????,?????????????
?????????,?????????1?????????,???????????????????????????,???????????????,???????????????????????????1??,????????????????????????????????????? ???????????????????????:????
?????????
????????“?” ??????1????“?????”?????????????