3-month percent changes in Employment Cost Index, civilian workers, seasonally adjusted, December 1998-September 2000 Compensation costs Wages and salaries Benefits Dec. 1998 0.6 0.7 0.6 Mar. 1999 0.5 0.5 0.3 June 1999 1.1 1.2 1.0 Sep. 1999 0.8 0.9 0.8 Dec. 1999 1.0 0.9 1.2 Mar. 2000 1.4 1.1 2.0 June 2000 1.0 1.0 1.1 Sep. 2000 0.9 0.8 1.0