Over-the-month percent change in price index for exports, November 2007–November 2008 (not seasonally adjusted) Percent change 2007 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 -1.6 Sep -0.8 Oct -2.0 Nov -3.2 Data may be revised in each of the three months after original publication.