53% (1979)

62% (1981)

52% (1960)

46% (1950)

47% (1961)

57% (1940)

40% (1981)

39% (1975)

51% (1986)

0% (1987)

59% (1985)

43% (1952)

67% (1939)

56% (1990)

70% (1984)

0% (1984)

53% (1979)

64% (1947)

50% (1961)

0% (1988)