English: Graph of profits made by BAIR company from 1892 to 1903. The values are taken from page 131 of "The World Abir Made: The Margina-Lopori Basin, 1885-1903" by Robert Harms from Issue 12 of the Journal of African Economic History of 1983. The first two years are averages of a value given for a two year period. The black line represents a general trend described by Harms for years with no data.
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{{Information |Description={{en|1=Graph of profits made by BAIR company from 1892 to 1903. The values are taken from page 131 of "The World Abir Made: The Margina-Lopori Basin, 1885-1903" by Robert Harms from Issue 12 of the Journal of African Economic H