59% (1986)

38% (1977)

32% (1985)

39% (1985)

46% (1980)

60% (1964)

41% (1976)

37% (1986)

36% (1978)

45% (1969)

53% (1979)

43% (1976)

16% (1969)

32% (1984)

23% (1967)

30% (1963)

43% (1986)

22% (1968)

49% (1968)

49% (1986)