78% (2017)

63% (2018)

75% (2019)

71% (2010)

70% (2007)

68% (2007)

65% (1981)

73% (1961)

61% (2006)

78% (1967)

56% (2022)

69% (2011)

65% (2000)

65% (1988)

58% (2002)

80% (2023)

70% (2022)

57% (2016)

46% (2013)

59% (2011)