( ) -- 1
2
3
4
/ / 5
1975 35 2002 314 2001 802 1975 10 1995 5 28 7 52% 6
/ / 14% 7
1997 2001 1997 57% 2001 46% 1997 81% 2001 72% 1989-1990 177 2001-2002 3,736 10 20 30 1985 8
/ 1998 4% 1993 27% 2001 1993 45% 1993 24% 24% 2001 9
1997 1997 35% 1997 / 10
1998 23% 23-24% 20% 76% 义 11
12