60% (1965)

68% (1960)

45% (1961)

42% (1961)

50% (1964)

48% (1962)

0% (1957)

72% (1961)

60% (1957)

25% (1962)

48% (1956)

40% (1955)

40% (1963)

50% (1956)

50% (1958)

70% (1964)

45% (1958)

37% (1960)

0% (1976)