0% (1956)

47% (1984)

27% (1984)

45% (1963)

27% (1966)

53% (1988)

30% (1968)

20% (1973)

60% (1974)

70% (1958)

15% (1967)

60% (1977)

57% (1980)

57% (1970)

34% (1991)

70% (1972)

50% (1972)

0% (1989)

0% (1970)

20% (1947)