72% (1984)

69% (2021)

50% (1987)

55% (1979)

55% (1990)

58% (1977)

60% (1965)

64% (1951)

80% (1997)

65% (2012)

53% (1973)

65% (1962)

64% (2014)

49% (2011)

54% (1955)

70% (1993)

79% (2016)

70% (1999)

71% (2012)

69% (2015)