????:1?????????:???????50?????

2????????????

3?????????

4????????

5?????

???????????7??????1?????? (???????????? ??????????????????)1??15?30????,???????????????,?2??4??????????,???????????????????????????,???????????,?????,???18???????35????37??

??????????,??5??6??,????16.0?,?0.7?,?????????????1.3?????????223.7?,???56.4%,??84.1%?

????7?,???????????????????????????????????????????18??22?,?22????25????????,?0.5??????????????1.0?,???????????(?????????0??????????????0.5?)?

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