65% (2012)

0% (2006)

70% (2001)

90% (1989)

60% (2005)

0% (1982)

60% (2006)

0% (1981)

0% (2003)

0% (2009)

0% (1988)

0% (2003)

80% (1994)

50% (1999)

0% (1980)

90% (2004)

0% (1989)

80% (1982)

0% (1999)

0% (2004)