69% (1959)

50% (1963)

65% (1958)

71% (1960)

52% (1960)

55% (1962)

63% (1960)

45% (1962)

57% (1961)

62% (1958)

60% (1958)

67% (1961)

62% (1959)

35% (1959)

0% (1961)

40% (1959)

50% (1961)

40% (1960)

40% (1957)

50% (1959)