67% (1960)

40% (1963)

0% (1957)

72% (1964)

60% (1965)

60% (1957)

50% (1956)

40% (1955)

50% (1961)

50% (1964)

50% (1958)

48% (1962)

37% (1960)

0% (1976)

45% (1958)

72% (1961)

25% (1962)

48% (1956)

47% (1961)