40% (1980)

62% (1964)

57% (1946)

56% (1948)

61% (1959)

44% (1953)

49% (1953)

57% (1950)

50% (1950)

66% (1953)

50% (1948)

57% (1955)

55% (1955)

55% (1972)

46% (1954)

48% (1958)

60% (1963)

50% (1949)

50% (1951)

56% (1975)