-
1930 1953 1964 1973 1974 6 1960 7 1964 14000 4 6 1970 1972 1973 1974
1995 5%~10% 20%~30%
35 800 884 1998 1999 100 700 21
1981 1992 1994 1995 8 1999 8117 2001 2 19 500