64% (1971)

81% (1999)

81% (1978)

79% (2002)

82% (2015)

71% (1993)

73% (2014)

80% (1999)

76% (2003)

73% (2001)

80% (2000)

74% (2015)

79% (1991)

83% (1987)

77% (2023)

81% (1975)

75% (2007)

85% (1997)

71% (2010)

73% (2011)