68% (2007)

48% (2010)

72% (1981)

73% (1938)

61% (2006)

76% (1960)

61% (2017)

66% (2015)

53% (2017)

53% (2019)

56% (2019)

65% (2019)

63% (2013)

76% (1966)

80% (2019)

69% (2011)

62% (2004)

50% (2019)

64% (1959)

48% (2023)