?? ???16.2??? ?????4.7?????????
????:1????????:????????
2????????????
3???????
4????????
5??????????
??12??26?? ?????,???????????????????,??????????????16.2??,????????????????4.7????????,?????2.5????;???8000?????????????????,????????????3000??,???2300??
??,??43??,??11.7%???;????51.8??????????,?????3%?????????,???
??????????:?????????????