86% (2012)

73% (2014)

65% (2021)

84% (2017)

83% (2007)

83% (2011)

72% (2009)

80% (2008)

76% (2001)

81% (2011)

82% (2000)

78% (1985)

84% (2005)

60% (2016)

71% (1963)

56% (2007)

73% (2024)

80% (1998)

85% (2024)

0% (2015)