62% (1968)

67% (1987)

0% (1982)

65% (1980)

60% (1972)

54% (1981)

73% (1974)

40% (1974)

69% (1986)

72% (1975)

60% (1972)

69% (1980)

62% (1984)

34% (1986)

67% (1986)

75% (1984)

80% (1971)

72% (1983)

52% (1985)

10% (1985)