70% (1970)

52% (1977)

63% (1981)

10% (1958)

68% (1967)

67% (1963)

68% (1980)

48% (1956)

85% (1940)

80% (1960)

50% (1940)

72% (1958)

64% (1966)

46% (1976)

48% (1982)

50% (1947)

0% (1954)

40% (1945)

70% (1963)

56% (1981)