64% (1961)

68% (1926)

55% (1953)

63% (1946)

50% (1956)

59% (2000)

58% (1957)

60% (1963)

54% (1970)

67% (1958)

46% (1978)

42% (1944)

63% (1949)

56% (1959)

59% (1973)

62% (2000)

55% (1975)

57% (1949)

43% (1924)

71% (1961)