35% (1987)

83% (1979)

58% (1998)

54% (1980)

69% (2000)

50% (1986)

73% (1989)

50% (1994)

62% (1984)

0% (1990)

59% (1994)

32% (2004)

77% (1988)

50% (1979)

57% (1997)

75% (1985)

58% (1991)

57% (1978)

41% (1997)

50% (1990)