61% (1959)

51% (1970)

72% (1955)

50% (1954)

50% (1953)

58% (1965)

52% (1951)

58% (1958)

45% (1981)

50% (1948)

64% (1958)

57% (1967)

70% (1971)

49% (1967)

66% (1962)

54% (1969)

45% (1947)

43% (1961)

0% (1949)

0% (1941)