3-month percent changes in Employment Cost Index, private industry workers, seasonally adjusted, December 2005-September 2007 Percent change Compensation costs Wages and salaries Benefit costs 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 June 2007 0.9 0.8 1.1 Sep. 2007 0.8 0.8 0.8