UPDATE 1 (2014-6-12): Witness to Transformation has an update here.
ORIGINAL POST (2014-6-4): Nicholas Eberstadt has written an interesting article on trends in the DPRK’s trade patterns from 2002-2013.
Here is just one graph:
Dr. Eberstadt draws some counter-intuitive conclusions that cannot be observed directly from the published data. You can read all about the published data on the DPRK’s 2013 trade statistics here.