50% (1947)

60% (1965)

0% (1986)

70% (1978)

0% (1985)

46% (1979)

62% (1965)

55% (1981)

38% (1963)

0% (1956)

0% (1931)

49% (1972)

50% (1936)

59% (1962)

60% (1958)

0% (1980)

90% (1980)

58% (1973)

38% (1956)

72% (1964)