50% (1950)

52% (1967)

62% (1959)

55% (1973)

63% (1966)

49% (1964)

64% (1965)

38% (1976)

34% (1966)

60% (1921)

70% (1962)

80% (1960)

0% (1953)

60% (1958)

55% (1937)

50% (1952)

0% (1926)

48% (1921)

10% (1964)

50% (1923)