69% (2017)

67% (2012)

69% (2011)

61% (1998)

66% (1982)

72% (2006)

81% (1990)

77% (1948)

61% (2012)

72% (1990)

57% (2020)

50% (2011)

76% (1965)

71% (1938)

72% (2015)

64% (2013)

60% (2004)

60% (1995)

68% (1982)

69% (1993)