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

2?????

3????????

4???????

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

????????????10????14????? (???????????????? ??)????????????????????14???????????????????????,???????????????????4.62???????????????,?????5.1%?

???,?????,???????8.6%?13.4%;???????????????????????14.4%?34.3%???,??????????????????????????????????????

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

?,????“??????????”??????,?????????????????(???????????????????) ???????:????????????????????