53% (1976)

46% (1990)

70% (1979)

77% (1988)

61% (1964)

66% (1960)

77% (1980)

64% (2020)

76% (1984)

53% (1990)

62% (1975)

69% (1986)

61% (1974)

80% (1996)

70% (1969)

64% (1973)

60% (1970)

63% (1956)

55% (1986)

0% (1990)