52% (1986)

65% (2017)

62% (2005)

68% (1965)

76% (2018)

65% (1997)

56% (1979)

70% (2004)

58% (2006)

73% (2017)

76% (2007)

64% (2010)

69% (2017)

70% (1985)

64% (2004)

61% (2015)

64% (2011)

66% (2014)

58% (2018)

76% (2019)