63% (1959)

53% (1962)

61% (1959)

63% (1964)

69% (1960)

64% (1961)

64% (1964)

45% (1961)

50% (1968)

63% (1961)

58% (1964)

40% (1963)

45% (1962)

53% (1967)

0% (1958)

44% (1961)

40% (1974)

50% (1957)