69% (2015)

66% (1990)

64% (2016)

61% (1998)

57% (2024)

63% (2013)

61% (2010)

76% (1960)

75% (1995)

64% (2009)

63% (2018)

62% (2013)

64% (2016)

77% (1985)

78% (1989)

63% (2012)

64% (2018)

73% (2023)

80% (1995)

51% (2014)