68% (1980)

81% (2013)

73% (2010)

58% (1999)

63% (2012)

67% (1998)

66% (2014)

65% (2004)

70% (2021)

78% (2015)

63% (2010)

75% (2023)

57% (1985)

77% (1961)

67% (1991)

76% (1962)

58% (2004)

73% (1978)

59% (1986)

50% (2020)