77% (2024)

74% (2017)

79% (2022)

75% (2021)

68% (2020)

79% (2009)

74% (1995)

77% (1984)

80% (2007)

84% (2011)

81% (2019)

67% (2015)

75% (2015)

67% (1999)

75% (2017)

63% (2003)

76% (2013)

65% (2001)

68% (2009)

73% (2023)