0% (1990)

63% (1980)

51% (1981)

63% (1981)

50% (1961)

57% (1962)

50% (1986)

50% (1956)

59% (1974)

53% (1968)

51% (1987)

80% (1989)

33% (1983)

60% (1985)

50% (1962)

52% (1990)

50% (1985)

62% (1978)

40% (1985)

56% (1989)