61% (1959)

57% (1946)

56% (1948)

50% (1949)

53% (1960)

44% (1953)

56% (1975)

60% (1957)

57% (1955)

66% (1953)

55% (1955)

57% (1950)

48% (1958)

62% (1964)

60% (1963)

49% (1953)

50% (1950)

55% (1972)

50% (1962)

50% (1951)