53% (1972)

74% (1959)

65% (1976)

40% (2001)

64% (1975)

50% (1982)

68% (2001)

83% (1980)

58% (1965)

81% (1980)

0% (1989)

64% (1972)

80% (1960)

78% (1978)

80% (1958)

85% (1984)

72% (1987)

48% (1955)

60% (1984)

80% (1983)