From FY1989 through FY2006, 33 appropriations, authorization, or farm disaster acts added approximately $55.4 billion in supplemental funding for U.S. Department of Agriculture (USDA) programs. The two most recent supplemental appropriations were provided in response to Hurricanes Katrina and Rita in the Gulf of Mexico and in preparation for a possible U.S. outbreak of avian influenza. Some FY1989, the vast majority of the total supplemental funding has been paid directly to farmers, primarily through two mechanisms: "market loss payments" and crop disaster payments. This report includes the total annual funding additions in the 33 acts providing economic and farm disaster assistance through USDA programs since FY1989.