73% (1986)

63% (1959)

66% (1987)

56% (1973)

29% (1958)

43% (1963)

41% (1969)

61% (1969)

77% (1950)

55% (1968)

72% (1981)

52% (1964)

40% (1957)

41% (1979)

63% (1989)

0% (1969)

45% (1953)

65% (1951)

61% (1974)

55% (1969)