63% (1968)

70% (1974)

58% (1969)

43% (1984)

42% (1969)

42% (1976)

50% (1953)

68% (1954)

45% (1963)

65% (1948)

33% (1971)

38% (1966)

45% (1965)

15% (1980)

48% (1968)

0% (1950)

10% (1974)

41% (1976)

49% (1962)

0% (1954)