44% (1968)

62% (1956)

28% (1969)

65% (1964)

60% (1962)

45% (1963)

52% (1964)

30% (1960)

55% (1965)

48% (1964)

0% (1956)

64% (1963)

48% (1959)

70% (1970)

78% (1967)

32% (1969)

30% (1954)

40% (1964)

45% (1968)

0% (1959)