40% (1992)

60% (1992)

100% (1999)

10% (2000)

0% (2004)

0% (2002)

0% (2001)

0% (2004)

0% (2005)

0% (1998)

0% (1998)

0% (2002)

50% (1994)

50% (1996)

0% (2001)

50% (2000)

0% (1994)

0% (2003)

0% (1998)

0% (2004)