68% (1969)

64% (1973)

70% (1969)

71% (1972)

61% (1962)

51% (1966)

58% (1990)

62% (1958)

56% (1971)

40% (1971)

59% (1967)

58% (1971)

33% (1971)

59% (1974)

55% (1969)

62% (1962)

52% (1962)

68% (1968)

50% (1964)

63% (1966)