85% (1966)

81% (1965)

45% (1980)

58% (1980)

69% (1967)

41% (1977)

50% (1967)

85% (1969)

62% (1972)

53% (1975)

52% (1977)

46% (1970)

52% (1971)

55% (1966)

58% (1978)

51% (1974)

51% (1973)

47% (1982)

52% (1969)

60% (1972)