63% (1966)

77% (1980)

71% (1975)

57% (1971)

52% (1973)

58% (1977)

67% (1965)

50% (1992)

32% (1972)

40% (1987)

80% (1963)

60% (1973)

40% (1975)

0% (1964)

0% (1979)

0% (1970)

31% (1988)

40% (1972)

0% (1969)

0% (1962)