80% (1982)

47% (1994)

60% (1974)

68% (1978)

75% (1978)

68% (1972)

68% (1966)

69% (1980)

56% (1976)

66% (1969)

70% (1984)

67% (1967)

69% (1994)

69% (1982)

61% (1984)

65% (1985)

69% (1978)

63% (1964)

64% (1986)

73% (1974)