Over-the-month percent change in price index for imports, December 2007-December 2008 (not seasonally adjusted) Percent change 2007 Dec -0.2 2008 Jan 1.5 Feb 0.2 Mar 3.1 Apr 2.8 May 2.8 Jun 3.0 Jul 1.4 Aug -3.1 Sep -3.6 Oct -5.9 Nov -7.0 Dec -4.2 Data may be revised in each of the three months after original publication.