80% (1986)

41% (1990)

46% (1987)

56% (1941)

31% (1990)

68% (1982)

65% (1973)

58% (1991)

85% (1971)

43% (1964)

77% (1977)

59% (1975)

49% (1984)

30% (1965)

41% (1956)

44% (1978)

64% (1974)

44% (1956)

56% (1959)

68% (1966)