Although the workers' compensation program covered more workers and paid more in benefits in 1981 than it did a year earlier, the rise in both of these indicators was slightly smaller than those in 1980 and considerably smaller than the increases that took place in the 1970's. Employers paid $22.9 billion in premiums in 1981, less than 3 percent more than the previous year and the smallest annual increase since 1958. The cost-payroll ratio also showed a 12-point drop in 1981, the first such decline since 1959 and a sharp contrast to the almost 9 percentage point average annual rise in the 1970's. The Black Lung program, which made up more than a fifth of the benefit payments under workers' compensation in 1973, accounted for only about an eighth by 1981.