83% (2015)

81% (2009)

79% (2021)

83% (1999)

80% (2016)

74% (2015)

77% (1993)

35% (1974)

72% (1985)

70% (1981)

75% (2005)

81% (1971)

82% (2016)

76% (1982)

76% (1985)

72% (1944)

72% (2001)

71% (1979)

72% (1965)

83% (2011)