74% (1962)

69% (2010)

58% (2019)

61% (2020)

54% (2005)

54% (2023)

67% (2016)

78% (1960)

76% (2002)

58% (2013)

71% (2021)

73% (2017)

59% (2015)

64% (1976)

59% (1996)

62% (2009)

73% (2007)

57% (2002)

63% (2022)

71% (2023)