[1] In such times, the nation's central bank used its reserves to meet that obligation, backing some or all of the currency in issue with the metal it held.
[4] At a price of US$1,250 per troy ounce, marked on 16 August 2017, one tonne of gold has a value of approximately US$40.2 million.
The total value of all gold ever mined, and that is accounted for, would exceed US$7.5 trillion at that valuation, using WGC's 2017 estimates.
[a] Since early 2011, the gold holdings of the IMF have been constant at 90.5 million troy ounces (2,814.1 metric tons).
On 17 July 2015, China disclosed its official gold holdings for the first time in six years and announced that increased by about 57 percent, from 1,054 to 1,658 metric tons.