52% (1977)

68% (1967)

71% (1970)

63% (1981)

58% (1965)

68% (1980)

56% (1981)

66% (1941)

58% (1979)

64% (1966)

60% (1976)

60% (1969)

70% (1963)

60% (1959)

0% (1941)

62% (1978)

40% (1945)

50% (1932)

48% (1982)

60% (1948)