58% (1971)

62% (1971)

70% (1976)

56% (1968)

100% (1975)

71% (1983)

53% (1971)

67% (1970)

54% (1969)

45% (1970)

61% (1968)

54% (1972)

48% (1970)

76% (1985)

63% (1971)

63% (1981)

62% (1967)

55% (1982)

47% (1974)

51% (1971)