63% (1960)

48% (1958)

30% (1959)

58% (1965)

38% (1961)

68% (1966)

48% (1959)

55% (1952)

40% (1956)

0% (1955)

60% (1960)

10% (1966)

0% (1958)

0% (1955)

55% (1961)

60% (1959)

45% (1959)

0% (1953)

45% (1954)

0% (1967)