80% (1975)

68% (1989)

50% (1968)

50% (1989)

76% (1978)

58% (1990)

59% (1974)

60% (1965)

70% (1968)

0% (1983)

62% (1975)

69% (1963)

63% (1957)

50% (1953)

65% (1957)

53% (1971)

60% (1980)

50% (1962)

80% (1964)

69% (1973)