0% (1992)

77% (2002)

0% (1994)

72% (2007)

12% (2005)

0% (2000)

73% (2002)

100% (1997)

0% (2001)

0% (2005)

0% (2004)

0% (2006)

69% (1984)

0% (1990)

0% (2003)

100% (1999)

20% (1994)

0% (2009)

0% (1990)

30% (1988)