63% (2010)

62% (2020)

62% (1988)

49% (1978)

58% (1983)

54% (2008)

75% (1945)

59% (1989)

69% (2006)

58% (1996)

57% (2007)

62% (1997)

66% (1937)

57% (2003)

49% (2005)

67% (2020)

65% (1989)

58% (2000)

67% (1970)

56% (2010)