36% (1979)

60% (1921)

80% (2000)

56% (1970)

55% (1957)

58% (1930)

49% (1961)

49% (1977)

48% (1946)

60% (1943)

56% (1954)

38% (1971)

62% (1934)

56% (1929)

67% (1960)

42% (1956)

30% (1980)

54% (1957)

35% (1942)

50% (1945)