56% (1955)

60% (1958)

70% (1954)

0% (1953)

54% (1958)

40% (1970)

20% (1971)

50% (1959)

43% (1961)

0% (1956)

52% (1975)

40% (1956)

47% (1956)

70% (1957)

20% (1970)

45% (1959)

50% (1960)

60% (1963)

70% (1953)

70% (1960)