72% (1954)

71% (1950)

71% (1958)

65% (1948)

67% (1956)

53% (1965)

65% (1990)

81% (1961)

50% (1980)

50% (1991)

53% (1942)

72% (1998)

68% (1949)

59% (1959)

53% (1954)

64% (1981)

62% (1946)

66% (1962)

55% (1966)

50% (1954)