71% (2018)

79% (2021)

68% (2016)

81% (2021)

72% (2021)

66% (2024)

80% (2019)

71% (1990)

70% (1979)

77% (2023)

58% (2011)

68% (2011)

60% (2018)

73% (2014)

82% (2006)

70% (1968)

72% (2023)

73% (2018)

78% (2010)

34% (2015)