79% (1973)

76% (1965)

40% (1962)

73% (1974)

63% (1982)

37% (1959)

46% (1990)

55% (1967)

61% (1980)

59% (1972)

65% (1984)

55% (1971)

69% (1968)

0% (1984)

90% (1962)

35% (1973)

43% (1979)

22% (1956)

0% (1985)

30% (1990)