| | | | 1947 4 9 | | 1.4 | 1.7 | 1.9 6 | 831 | | | | | | | 1953 10 | | | | | | | | | | | | | | | | 1955 8 | | | | | 1956 | 1962 | | ① 3.5 | 2 10 1 1 10 | 14 ② | 17.5 15.5 | 14.5 ③ | 29 26.5 24.5 | 23 21 | 20 18 16.5 | 16 1955 1961 | 3 1962 1963 1 1963 | 1964 2 1964 1979 3 | 4 5 1989 7 | | | | | 1957 14 1989 | 62 1986 1.79 | 1978 71% | 1.5 2.5 4 | 40% | | | | | | 1960 1978 | | 1984 1 075 1978 | 27.7% 1986 2 507 | | 1989 7 | | | 50 60 | | | 4 | 3 2 1.5 2 1 | 3 6 | 1 | | 1989 12 079 | |