63% (1996)

61% (1955)

70% (1964)

65% (1940)

59% (1955)

69% (1958)

57% (1997)

60% (1971)

55% (1978)

68% (1960)

62% (1963)

58% (2002)

58% (1980)

55% (1956)

70% (1972)

55% (1981)

63% (1966)

62% (1941)

69% (1973)

67% (1936)