60% (1973)

20% (1955)

64% (1958)

55% (1959)

53% (1961)

48% (1966)

50% (1967)

53% (1963)

47% (1964)

52% (1953)

42% (1963)

0% (1965)

0% (1967)

50% (1949)

30% (1951)

80% (1963)

10% (1957)

0% (1953)

64% (1963)

70% (1971)