Somehow I messed up the 2015 North Korea-China trade amount. It did not increase but declined from 2014.
From Korea Trade-Investment Promotion Agency data, I now estimate Chinese trade and aid is responsible for direct and in kind fungible profits that fund more than 80 percent of North Korea’s $6 billion military budget. [not 90 percent]
The corrected ten year graph is below.
North Korea Trade Volume (billions)