??????
??????
??????
??????
??????
??????
???????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
???2000?????????????? ????????
???2000?????????????? ????????
??
????:
1???92?:????????????
2???????????
3???????
4??????????
5????????
????
6
%
???:??