61% (1964)

58% (1980)

59% (2018)

68% (2005)

66% (1945)

66% (2008)

66% (1989)

70% (1964)

65% (1939)

70% (2010)

75% (1943)

75% (2005)

68% (2007)

54% (1988)

70% (1988)

67% (2006)

63% (2020)

63% (2021)

66% (2020)

69% (2017)