Korean yen
The Korean yen was the currency of Korea between 1910 and 1945. It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. The yen was subdivided into 100 sen. It replaced the Korean won at par and was replaced by the South Korean won and the North Korean won at par.
Economy of North Korea
The South Korea-based Bank of Korea estimated that over 2000 to 2013 average growth was 1.4% per year. It estimated that the real GDP of North Korea in 2015 was 30,805 billion South Korean won. The same year, it published the following estimates of North Korea's GDP growth: