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, with trade with China increasing from 50% of total trade in 2005 to near 90% in 2014. In 2015, it was estimated that exports to China were $2.3 billion—83% of total exports of $2.83 billion.