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

2??????????

3?????????????

4?????+Q

5???????????

?:??????????6?????28?????????????,15????????????????,??135.3??????,???5.9%;???????????

??????????????????,??????????????15??????????,???????????????5.7%,????????????,??????????????????9%,?????????,??????15??????????,??????????11.4%,5???????????????12.6%,???4??????????????????????3.7????????????????????????????????5??????,?????????????????,?????30%?

??????????????????????,??????,??4%,????,???????????,??,??

??,??????????,?????????????????15????????,???????????????,????????????3.5?,?????????????,??????????????,?????????????????????? ?????:?????