Table : TABLE 10.1 Estimated Magnitude of Trans-Saharan Slave Trade, 650–1500
YearsAnnual Average of Slaves TradedTotal
650–8001,000150,000
800–9003,000300,000
900–11008,7001,740,000
1100–14005,5001,650,000
1400–15004,300430,000

Source: R. A. Austen, “The Trans-Saharan Slave Trade: A Tentative Census,” in The Uncommon Market: Essays in the Economic History of the Atlantic Slave Trade, ed. H. A. Gemery and J. S. Hogendorn (New York: Academic Press, 1979). Used with permission.