65% (1960)

60% (1989)

68% (1982)

0% (1987)

62% (1956)

67% (1983)

35% (1980)

53% (1958)

45% (1961)

72% (1981)

59% (1974)

50% (1967)

86% (1957)

60% (1986)

50% (1969)

60% (1968)

64% (1990)

64% (1965)

69% (1960)

72% (1989)