Over-the-month percent change in price index for exports, May 2008-May 2009 (not seasonally adjusted) Percent change 2008 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 0.7 Feb -0.3 Mar -0.7 Apr 0.4 May 0.6 Data may be revised in each of the three months after original publication.