0% (2006)

67% (1997)

71% (1988)

0% (2003)

0% (2004)

0% (2008)

98% (1988)

80% (1987)

87% (1994)

100% (1988)

62% (1993)

88% (1991)

73% (1993)

86% (1993)

60% (1994)

70% (2001)

0% (1970)

60% (1989)

76% (1987)

0% (1989)