80% (1973)

76% (1965)

73% (1974)

40% (1962)

0% (1974)

58% (1979)

65% (1982)

65% (1984)

30% (1990)

0% (1970)

0% (1962)

70% (1991)

60% (1983)

35% (1973)

79% (1961)

78% (1972)

38% (1959)

90% (1962)

49% (1973)

42% (1981)