58% (1971)

62% (1971)

71% (1983)

100% (1975)

76% (1985)

67% (1970)

53% (1971)

47% (1974)

66% (1968)

50% (1979)

56% (1968)

54% (1972)

72% (1971)

70% (1976)

60% (1978)

63% (1971)

54% (1969)

55% (1982)

57% (1982)

45% (1970)