85% (1966)

80% (1965)

56% (1980)

45% (1980)

70% (1967)

62% (1972)

46% (1970)

10% (1976)

48% (1976)

53% (1975)

52% (1977)

58% (1978)

56% (1967)

20% (1976)

85% (1969)

47% (1982)

0% (1975)

52% (1971)

41% (1977)

50% (1967)