 Based on the price of rice, North Korea's hyperinflation peaked in mid-January 2010, but according to black market exchange-rate data, and calculations based on purchasing power parity, North Korea experienced its peak month of inflation in early March 2010.These data points are unofficial, however, and therefore must be treated with a degree of caution.In modern history, Peru underwent a period of hyperinflation period in the 1980s to the early 1990s starting with President Fernando Belaúnde's second administration, heightened during Alan García's first administration, to the beginning of Alberto Fujimori's term.