38% (2018)

76% (2014)

0% (2007)

87% (2017)

82% (2009)

76% (2001)

64% (1996)

63% (2008)

82% (2007)

68% (1992)

83% (2009)

57% (1963)

83% (2014)

79% (2013)

73% (2004)

81% (2007)

44% (2004)

0% (1995)

70% (2010)

85% (2010)