56% (2006)

77% (1997)

63% (1989)

55% (2012)

58% (2014)

57% (1986)

72% (1955)

57% (2009)

76% (1945)

56% (2007)

53% (2018)

75% (1950)

61% (1998)

58% (2012)

70% (2010)

69% (2005)

65% (1997)

71% (2010)

65% (2018)

65% (2020)