53% (1976)

70% (1979)

46% (1990)

77% (1988)

61% (1974)

68% (1969)

61% (1964)

77% (1980)

66% (1960)

64% (2020)

53% (1990)

80% (1996)

76% (1984)

62% (1975)

68% (2003)

63% (1956)

70% (1969)

69% (1986)

73% (1985)

61% (1971)