30% (1979)

50% (1963)

48% (1958)

51% (1958)

42% (1968)

50% (1964)

49% (1968)

43% (1956)

44% (1970)

50% (1979)

61% (1978)

56% (1957)

43% (1962)

57% (1957)

50% (1979)

66% (1960)

62% (1976)

0% (1963)

57% (1957)

40% (1961)