70% (1980)

63% (1985)

0% (1980)

0% (1961)

0% (1975)

70% (1986)

46% (1989)

64% (1947)

58% (1987)

59% (1954)

41% (1981)

0% (1980)

82% (1956)

0% (1968)

59% (1977)

0% (1990)

72% (1966)

42% (1962)

50% (1981)

27% (1985)