30% (1954)

50% (1952)

0% (1951)

40% (1959)

42% (1955)

68% (1963)

0% (1955)

30% (1957)

50% (1956)

50% (1953)

40% (1957)

60% (1965)

0% (1957)

40% (1953)

0% (1961)

52% (1955)

33% (1958)

0% (1958)

60% (1963)

60% (1973)