78% (2003)

69% (2005)

72% (2001)

55% (2000)

60% (2005)

90% (2004)

53% (2005)

50% (2009)

0% (1970)

58% (2000)

0% (2008)

0% (2004)

20% (1999)

60% (2006)

70% (2010)

55% (2004)

0% (2006)

0% (2003)

100% (2009)

86% (2006)