How much gold is in the world?
https://www.fool.com/investing/2018/04/30/who-are-the-biggest-gold-investors.aspx The Word Gold Congress estimate that humans have pulled 187,200 tons of gold from the earth. If we melted the gold down and formed it into a cube, it would fit comfortably in the middle of a baseball diamond, which is 90 feet from base to base on each side. While relatively small in size, that cube would be worth a whopping $8 trillion at gold's recent price of around $1,340 an ounce. To further illustrate how rare and valuable gold is, the U.S. Geological Survey estimates that there are about 57,000 tons still in the ground to mine. Dig it up and melt it together, and the cube of additionally available gold would only stand as tall as an adult giraffe. Each year the mining industry digs out a little less than 3,500 tons of gold, or roughly 112 million ounces. Another 1,300 tons get recycled each year. Simple math tells that only 16+ years of gold mining left ? Meanwhile, another 1,300 tons get recycled each year. That puts the gold market at roughly $170 billion per year, which, for perspective, pales in comparison to the more than $1.7 trillion oil market. Jewelry industry uses an average of more than 2,000 tons of gold each year.
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https://www.gold.org/about-gold/gold-supply/gold-mining/how-much-gold 
Total above ground stocks: 190,040 tonnes
1. Jewellery: 90,718 tonnes, 47.7%
2. Private investment: 40,035 tonnes, 21.1%
3. Official sector: 32,575 tonnes, 17.1%
4. Other: 26,711 tonnes, 14.1%
5. Below ground reserves: 54,000 tonnes
摸 象 或 (不?) 著 木目 於 2019/10/08 19:31回覆
