83% (1977)

80% (1997)

72% (2014)

85% (1999)

76% (1987)

76% (2009)

82% (1979)

79% (2014)

74% (2002)

70% (2017)

77% (2016)

70% (2005)

81% (2019)

74% (2006)

63% (2010)

75% (2018)

56% (2018)

74% (2008)

80% (2018)

68% (2004)