3-month percent changes in Employment Cost Index, private industry workers, seasonally adjusted, September 2004-June 2006 Percent change Compensation costs Wages and salaries Benefit costs Sep. 2004 0.9 0.8 1.0 Dec. 2004 0.7 0.4 1.2 Mar. 2005 0.9 0.7 1.5 June 2005 0.6 0.5 0.8 Sep. 2005 0.7 0.6 0.9 Dec. 2005 0.7 0.6 0.7 Mar. 2006 0.6 0.7 0.4 June 2006 0.8 0.9 0.7