61% (2002)

63% (1987)

75% (1985)

50% (1983)

60% (1986)

69% (1983)

50% (1987)

55% (1986)

50% (1984)

71% (1985)

67% (1984)

60% (1984)

40% (1985)

63% (1983)

54% (1983)

60% (1987)

50% (1985)

64% (1984)

56% (1983)

48% (1984)