76% (2015)

70% (2017)

65% (1992)

86% (1980)

75% (1960)

89% (2010)

63% (1988)

45% (1993)

76% (2018)

83% (2002)

70% (1983)

74% (2020)

85% (2001)

76% (2001)

79% (1993)

79% (2010)

86% (2006)

72% (2013)

70% (1994)

62% (1965)