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

2?????????

3???????

4??????????

5?????

?8??23?? (???)????23???1????7??????????????,???7???50%?

????????,??????????7??,???????31.0??,??14.0%???,????7.4???,?49.8%;??4.7??,????????????19.8%?

????1?7?,????1994????????????????,????91???1???7?????????????????,?4158????(???,????????????),??2.6%???2947??,???????19.2%?(???????)

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