Economy of North Korea
Estimating gross national product in North Korea is a difficult task because of a dearth of economic data and the problem of choosing an appropriate rate of exchange for the North Korean won, the nonconvertible North Korean currency. The South Korean government's estimate placed North Korea's GNP in 1991 at US$22.9 billion, or US$1,038 per capita. In contrast, South Korea posted US$237.9 billion of GNP and a per capita income of US$5,569 in 1991. North Korea's GNP in 1991 showed a 5.2% decline from 1989, and preliminary indications were that the decline would continue. South Korea's GNP, by contrast, expanded by 9.3% and 8.4%, respectively, in 1990 and 1991.
North Korean won
In 1992, another redesign was carried out for banknotes, again in denominations of 1-, 5-, 10-, 50-, and 100-won. Older notes were once again withdrawn. These notes were smaller and crisper than the previous issue and depicted more modern themes. The 5 and 10 won banknotes were again issued in 1998, along with a 500 won banknote that same year but were stamped rather than engraved reflecting poorer production quality. In 2002, 1,000 and 5,000 won notes were introduced, followed by a 200 won note in 2005. The former two were identical in design to the 100 won though differing in colors and added security features, but the colored fields behind the text no longer extended all the way to the margins. In 2007, the 500 won had also been revised in this same manner along with being engraved for the first time to protect against counterfeiting. From 1998 onwards, all notes were dated using the Juche year along with the standard dating.