Over-the-month percent change in price index for imports, March 2006–March 2007 (not seasonally adjusted) Percent change 2006 Mar -0.1 Apr 2.1 May 1.8 Jun 0.1 Jul 0.8 Aug 0.5 Sep -2.2 Oct -2.5 Nov 0.4 Dec 1.1 2007 Jan -1.1 Feb 0.1 Mar 1.7 Data may be revised in each of the three months after original publication.