62% (2002)

54% (1983)

60% (1984)

49% (1987)

56% (1983)

64% (1984)

60% (1984)

48% (1984)

71% (1985)

66% (1983)

75% (1985)

50% (1987)

55% (1986)

69% (1983)

0% (1986)

50% (1983)

63% (1987)

58% (1982)

58% (1986)

45% (1981)