81% (1950)

67% (2001)

78% (1954)

76% (1997)

74% (1954)

72% (1951)

80% (1953)

81% (1954)

67% (1955)

75% (1959)

77% (1959)

77% (1956)

79% (1975)

74% (1999)

73% (1949)

73% (1993)

63% (1995)

70% (1966)

65% (1964)

60% (1967)