<P> Statistics from North Korea's trade partners is collected by international organizations like the United Nations and the International Monetary Fund, and by South Korean organizations such as the National Unification Board . </P> <P> It is also estimated that imports of arms from the USSR in the period 1988 to 1990 accounted for around 30% of the DPRK's total imports, and that between 1981 and 1989 the DPRK earned approximately $4 billion from the export of arms, approximately 30% of the DPRK's total exports in that period . The nominal dollar value of arms exports from the DPRK in 1996 is estimated to have been around $50 million . </P> <P> North Korea's foreign trade deteriorated in the 1990s . After hitting the bottom of $1.4 billion in 1998, it recovered slightly . North Korea's trade total in 2002 was $2.7 billion: only about 50% of $5.2 billion in 1988, even in nominal US dollars . These figures exclude intra-Korean trade, deemed internal, which rose in 2002 to $641 million . During the late 2000s trade grew strongly, almost tripling between 2007 and 2011 to $5.6 billion, with much of the growth being with China . By about 2010 external trade had returned to 1990 levels, and by 2014 was near double 1990 levels, alongside trade with China increasing from 50% of total trade in 2005 to near 90% in 2014 . </P> <P> In addition to Kaesŏng and Kŭmgang - san, other special economic areas have been established at Sinŭiju in the northwest (on the border with China), and at Rasŏn in the northeast (on the border with China and Russia). </P>

What percentage of north korea's foreign trade is with china