70% (1971)

75% (1964)

59% (1969)

75% (1957)

75% (1963)

56% (1971)

72% (1983)

80% (1961)

70% (1971)

69% (1960)

61% (1976)

70% (1965)

58% (1972)

62% (1967)

70% (1979)

75% (1962)

59% (1959)

32% (1968)

72% (1965)

61% (1964)