70% (1965)

50% (1922)

34% (1986)

0% (1987)

55% (1958)

63% (1975)

40% (1987)

52% (1968)

30% (1969)

45% (1980)

60% (1973)

65% (1989)

38% (1990)

46% (1977)

52% (1969)

35% (1984)

54% (1974)

50% (1979)

32% (1989)

70% (1956)