Over-the-month percent change in price index for exports, September 2006–September 2007 (not seasonally adjusted) Percent change 2006 Sep -0.4 Oct -0.3 Nov 0.4 Dec 0.6 2007 Jan 0.4 Feb 0.8 Mar 0.7 Apr 0.4 May 0.3 Jun 0.4 Jul 0.1 Aug 0.2 Sep 0.3 Data may be revised in each of the three months after original publication.