63% (1990)

50% (2002)

52% (1988)

67% (2002)

0% (1979)

71% (2002)

80% (1987)

54% (1999)

73% (2003)

0% (2002)

60% (1988)

68% (1993)

65% (1986)

85% (1974)

50% (1993)

52% (1985)

70% (1997)

0% (1977)

72% (1999)

70% (1987)