66% (1999)

61% (1980)

56% (2010)

75% (1978)

69% (2009)

65% (1997)

74% (1953)

67% (1997)

83% (1950)

76% (1954)

57% (1965)

62% (1971)

58% (1996)

59% (1961)

66% (1993)

66% (2000)

72% (1998)

61% (1999)

62% (2019)

74% (1968)