85% (1966)

81% (1965)

45% (1980)

56% (1979)

52% (1975)

15% (1981)

58% (1980)

70% (1967)

62% (1972)

55% (1966)

40% (1969)

50% (1982)

20% (1976)

46% (1970)

41% (1977)

50% (1967)

56% (1965)

80% (1969)

58% (1978)

40% (1966)