38% (1977)

32% (1968)

46% (1969)

47% (1969)

33% (1973)

0% (1976)

39% (1965)

50% (1973)

71% (1961)

50% (1962)

77% (1981)

48% (1970)

20% (1972)

53% (1962)

29% (1985)

60% (1964)

40% (1971)

32% (1966)

0% (1963)

20% (1962)