69% (2015)

73% (2009)

77% (2009)

77% (2007)

74% (1988)

78% (2010)

67% (2022)

67% (2023)

74% (2001)

73% (2015)

65% (2023)

76% (2018)

60% (2015)

76% (2015)

70% (2005)

67% (2023)

81% (1987)

78% (2005)

78% (2012)

60% (2016)