63% (2001)

76% (1973)

79% (1953)

65% (2001)

52% (1976)

73% (1975)

65% (1994)

70% (1991)

57% (2005)

56% (1995)

73% (1955)

60% (1968)

62% (1971)

59% (2009)

52% (2002)

67% (1986)

67% (1956)

64% (1986)

62% (1985)

81% (1944)