Over-the-month percent change in price index for exports, January 2008–January 2009 (not seasonally adjusted) Percent change 2008 Jan 1.2 Feb 0.9 Mar 1.6 Apr 0.5 May 0.3 Jun 1.0 Jul 1.5 Aug -1.6 Sep -0.8 Oct -2.1 Nov -3.2 Dec -2.2 2009 Jan 0.5 Data may be revised in each of the three months after original publication.