Gold mining dates back to ancient civilisations.
Our best estimates suggest that around 216,265 tonnes of gold have been mined throughout history.
Interestingly, about two-thirds of this gold has been extracted since 1950.
This massive increase in production has been due to advancements in mining technology and the discovery of new gold deposits.
What percentage is "A good portion" ?
* https://www.gold.org/goldhub/data/how-much-gold200 Years of Global Gold Production, by Country - https://elements.visualcapitalist.com/200-years-of-global-go...
* https://www.quora.com/How-much-gold-did-the-Spaniards-take-f...What's your estimate for the tonnage of gold "hoarded since biblical times" ?