63% (1990)

50% (2002)

67% (2002)

0% (1990)

70% (2002)

65% (2006)

58% (1984)

40% (1990)

52% (1988)

70% (1997)

50% (1993)

60% (1988)

95% (1998)

68% (1993)

73% (2003)

59% (2003)

71% (1999)

70% (1999)

80% (2005)

70% (1987)