59% (1986)

85% (1988)

75% (1986)

75% (1964)

72% (1981)

73% (1990)

70% (1983)

70% (1973)

71% (1973)

69% (1983)

75% (1981)

62% (1985)

74% (1964)

64% (1962)

67% (1972)

71% (1965)

62% (1975)

70% (1986)

68% (1975)

69% (1984)