77% (1955)

66% (1963)

50% (1959)

42% (1962)

69% (1960)

60% (1966)

77% (1957)

71% (1958)

50% (1955)

47% (1966)

60% (1962)

62% (1958)

62% (1954)

43% (1957)

57% (1952)

55% (1957)

47% (1959)

62% (1962)

42% (1960)

54% (1951)