76% (1984)

72% (1969)

78% (1967)

64% (2015)

69% (2011)

66% (1973)

78% (1993)

59% (2002)

77% (1977)

0% (1957)

78% (2019)

62% (1997)

81% (1976)

62% (2012)

71% (2011)

60% (1994)

47% (2006)

74% (1998)

58% (1972)

80% (2006)