60% (2006)

68% (1960)

77% (1959)

78% (2024)

56% (1972)

64% (1964)

69% (1961)

62% (1974)

72% (1966)

70% (1959)

71% (1962)

72% (1965)

62% (1969)

79% (1956)

64% (1968)

63% (2009)

78% (1965)

71% (1971)

71% (1960)

63% (1973)