Within the limitations of available data, Leigh and Schnall (2000) have produced an estimate of the economic burden of occupational illness or disorder and injury in the United States. The study is the first comprehensive estimate that uses national data, though without adequate age-specific data; their report does not consider the problems of older workers. They estimated that there were 13,337,000 occupational injuries in 1992, including 6,371 fatalities. The total estimated cost of those injuries was $132.8 billion. They estimated the occupational illnesses in 1992 to be 1,184,000 and deaths from occupational illness to be 60,290. The total cost of morbidity and mortality from occupational illness was estimated to be $22.8 billion. In 1992, the total loss from occupational injury and illness amounted to approximately 2.5 percent of Gross Domestic Product. Researchers in the United Kingdom and Denmark have made similar estimates of national product lost to occupational illness or disorders and injury.