Hyperinflation in Zimbabwe was a period of currency instability in Zimbabwe that, using Cagan's definition of hyperinflation [50% in a month], began in February 2007. During the height of inflation from 2008 to 2009, it was difficult to measure Zimbabwe's hyperinflation because the government of Zimbabwe stopped filing official inflation statistics. However, Zimbabwe's peak month of inflation is estimated at 79.6 billion percent month-on-month, 89.7 sextillion percent year-on-year in mid-November 2008. (full story)