66% (1964)

61% (1959)

57% (1959)

64% (1962)

65% (1961)

47% (1963)

40% (1963)

53% (1959)

61% (1962)

30% (1962)

40% (1959)

42% (1962)

30% (1960)

25% (1960)

38% (1964)

50% (1959)

35% (1961)

35% (1960)

60% (1962)

0% (1963)