78% (1995)

79% (2014)

73% (2020)

83% (1989)

82% (2010)

84% (1987)

86% (2016)

80% (1981)

76% (1985)

82% (2015)

80% (2018)

86% (2001)

72% (2002)

84% (2004)

77% (2020)

54% (2011)

45% (2013)

85% (2013)

83% (2011)

84% (2010)