0% (2010)

44% (2000)

80% (2008)

77% (2004)

68% (1993)

60% (2011)

50% (2000)

57% (1970)

69% (1984)

66% (1964)

81% (2013)

83% (2010)

77% (2005)

70% (2016)

74% (2013)

76% (2009)

71% (1995)

75% (2015)

61% (2005)

70% (2005)