73% (1973)

61% (1994)

64% (1975)

75% (2018)

69% (1965)

68% (1978)

68% (1972)

56% (2004)

61% (1978)

66% (1964)

61% (1966)

63% (1977)

66% (1985)

56% (1989)

68% (1963)

57% (1987)

63% (1964)

71% (1981)

70% (1962)

77% (1991)