66% (2007)

66% (1986)

69% (2005)

82% (2010)

61% (2002)

66% (1985)

61% (1974)

62% (1996)

61% (2021)

64% (1942)

69% (1996)

67% (1998)

70% (2008)

71% (2003)

67% (2013)

72% (1964)

67% (1991)

53% (1982)

65% (2006)

70% (1970)