81% (1994)

67% (1982)

65% (1969)

75% (1985)

78% (1959)

63% (1971)

78% (1991)

76% (1962)

77% (1997)

76% (2021)

62% (1964)

70% (1968)

62% (1982)

66% (1995)

76% (2007)

67% (1970)

74% (2003)

77% (1974)

70% (1976)

57% (2015)