76% (1997)

54% (2007)

67% (1984)

65% (1961)

67% (1979)

80% (1976)

61% (1989)

76% (1972)

72% (1988)

54% (2016)

70% (1977)

40% (2014)

69% (1983)

67% (1973)

77% (2018)

66% (1973)

67% (2023)

74% (2005)

77% (2000)

73% (2024)