95% (2000)

78% (2007)

87% (2002)

0% (1999)

71% (2009)

57% (1989)

20% (1986)

0% (1998)

92% (2004)

0% (1997)

60% (1998)

60% (1989)

57% (2010)

0% (1988)

92% (2009)

41% (1990)

100% (1989)

70% (2001)

0% (2004)

10% (1987)