77% (1965)

73% (1974)

80% (1973)

49% (1980)

58% (1979)

40% (1962)

69% (1968)

38% (1959)

78% (1972)

31% (1980)

79% (1961)

59% (1972)

65% (1982)

55% (1967)

35% (1973)

46% (1968)

0% (1971)

0% (1974)

30% (1990)

42% (1963)