80% (1964)

61% (1960)

80% (1959)

77% (1961)

79% (1965)

65% (1940)

84% (1952)

81% (1947)

77% (1968)

81% (1951)

79% (1941)

79% (1967)

77% (1946)

72% (1944)

76% (1948)

71% (1941)

78% (1971)

74% (1940)

70% (1954)

77% (1943)