53% (1995)

56% (1963)

52% (1962)

33% (1983)

74% (1962)

56% (1982)

50% (1968)

40% (1977)

62% (1967)

0% (1986)

0% (1993)

72% (1972)

0% (1976)

50% (1956)

58% (1982)

81% (1972)

0% (1974)

52% (1969)

66% (1991)

52% (1978)