53% (2002)

26% (1997)

66% (1972)

64% (1955)

61% (1955)

0% (1956)

73% (1971)

80% (1990)

78% (1975)

65% (1961)

70% (1981)

72% (1992)

67% (1984)

70% (1967)

73% (1969)

82% (1973)

71% (1981)

77% (1978)

85% (1980)

55% (1969)