Figure 15-6
Total Oil Spills by Volume and Source: 1991–2001

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NOTE: Percentages may not add to 100 because of independent rounding.

SOURCES: U.S. Department of Transportation, Research and Innovative Technology Admin­istration, Bureau of Transportation Statistics calculations, using U.S. Department of Homeland Security, U.S. Coast Guard, Pollution Incidents In and Around U.S. Waters, available at http://www.uscg.mil/, as of October 2003.