59% (1958)

62% (1963)

61% (1963)

50% (1959)

64% (1965)

54% (1958)

50% (1957)

55% (1964)

55% (1961)

55% (1960)

54% (1957)

33% (1962)

54% (1958)

42% (1962)

62% (1961)

50% (1961)

50% (1960)

31% (1962)

50% (1959)

52% (1959)