Over-the-month percent change in price index for exports, August 2007–August 2008 (not seasonally adjusted) Percent change 2007 Aug 0.2 Sep 0.3 Oct 0.8 Nov 0.9 Dec 0.5 2008 Jan 1.2 Feb 0.9 Mar 1.6 Apr 0.5 May 0.3 Jun 1.0 Jul 1.5 Aug -1.7 Data may be revised in each of the three months after original publication.