48% (1962)

68% (1960)

40% (1963)

45% (1961)

60% (1965)

40% (1955)

72% (1961)

48% (1956)

25% (1962)

37% (1960)

0% (1957)

73% (1964)

50% (1956)

45% (1958)

42% (1961)

50% (1964)

60% (1957)

50% (1958)

0% (1976)