71% (2020)

72% (2010)

72% (1994)

71% (2002)

77% (2004)

58% (2009)

66% (2002)

68% (1997)

56% (1992)

60% (1955)

58% (1998)

79% (2006)

73% (1995)

69% (2001)

67% (2005)

57% (2019)

73% (1999)

75% (1998)

60% (1963)

72% (2014)