72% (2011)

50% (2005)

51% (2009)

66% (2013)

0% (1970)

0% (1970)

90% (2009)

38% (2011)

52% (2014)

36% (2003)

0% (2009)

65% (2015)

52% (2012)

65% (2008)

0% (2009)

58% (2005)

70% (2008)