3-month percent changes in Employment Cost Index, private industry workers, seasonally adjusted, June 2005-March 2007 Percent change Compensation costs Wages and salaries Benefit costs June 2005 0.6 0.5 0.8 Sep. 2005 0.7 0.6 0.8 Dec. 2005 0.6 0.7 0.7 Mar. 2006 0.7 0.7 0.5 June 2006 0.8 0.8 0.7 Sep. 2006 0.9 0.8 1.0 Dec. 2006 0.8 0.8 0.9 Mar. 2007 0.6 1.1 -0.3