0% (1990)

33% (1983)

51% (1981)

63% (1981)

50% (1961)

57% (1962)

59% (1974)

80% (1989)

0% (1970)

58% (1967)

67% (1979)

50% (1965)

0% (1973)

0% (1976)

52% (1977)

50% (1989)

40% (1985)

56% (1989)

46% (1990)

50% (1969)