76% (2016)

75% (2012)

78% (2010)

77% (2001)

63% (2011)

70% (2012)

66% (2009)

35% (2001)

52% (2002)

73% (2008)

70% (2011)

67% (2001)

70% (2011)

50% (2009)

0% (2006)

38% (2005)

35% (2004)

58% (2010)

70% (2011)

57% (2011)