Its depreciation accelerated this week, after a disputed vote electing an all-powerful "Constituent Assembly" filled with allies of President Nicolas Maduro, which the opposition and dozens of countries have called illegitimate.

On Thursday alone, the bolivar slumped nearly 15 percent on the black market, to be worth 17,000 to one US dollar.

In a year, the currency has lost 94 percent.

The decline has been dizzying -- yet largely ignored by the government, which uses an official rate fixed weekly that is currently 2,870 to the dollar.

Ordinary Venezuelans, however, refer only to the black market rate they have access to, which they call the "dolar negro," or "black dollar."