56% (1987)

63% (1988)

40% (1986)

60% (1987)

54% (1986)

57% (1987)

75% (1982)

58% (1988)

64% (1986)

76% (1998)

75% (1987)

72% (1988)

57% (1985)

60% (1996)

40% (1991)

0% (1988)

0% (1998)

0% (2001)

80% (1986)

58% (1998)