42% (1976)

63% (1968)

70% (1974)

43% (1984)

38% (1966)

50% (1953)

68% (1954)

41% (1976)

48% (1968)

42% (1969)

58% (1969)

33% (1971)

45% (1963)

20% (1964)

30% (1967)

0% (1950)

45% (1965)

49% (1962)

0% (1950)

15% (1980)