71% (1991)

46% (1968)

10% (1968)

90% (1979)

80% (1987)

22% (1956)

50% (1968)

80% (1972)

0% (1983)

70% (1983)

60% (1971)

45% (1985)

0% (1989)

43% (1951)

0% (1982)

56% (1964)

0% (1965)

40% (1977)

55% (1983)

50% (1974)