0% (1992)

0% (1990)

77% (2002)

0% (2000)

80% (2002)

0% (1998)

30% (1988)

65% (2000)

12% (2005)

70% (2007)

100% (1997)

0% (2006)

68% (1984)

73% (2002)

68% (1999)

0% (2000)

0% (2004)

0% (1994)

20% (1994)

66% (1992)