Cumulative percent changes in wages and salaries, benefits, and health insurance costs, selected periods, 1980-1998 Time period Health Wages and Benefits insurance salaries Dec. 1980 to Dec. 1984 87.8 26.4 37.5 Dec. 1984 to Dec. 1987 16.5 11.0 10.8 Dec. 1987 to Dec. 1992 73.9 20.0 35.0 Dec. 1992 to Sep. 1998 14.8 21.0 18.2