????:1???????:51?????

2??????

3?????????

4???????

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

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

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

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

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