76% (2011)

50% (2000)

57% (2001)

78% (2015)

66% (2003)

67% (2005)

20% (2010)

59% (2013)

90% (2010)

10% (2011)

77% (2007)

0% (2010)

0% (2011)

0% (2009)

0% (2002)

0% (2013)