Gold miners storm the ranking as the value of the 50 biggest mining companies approaches $1 trillion after a stellar year.

Bullion rallied as much as 1.5% to $1,551.52 an ounce in the spot market, reaching the highest since September.

Many analysts say prices are likely to rise further in 2020.

Bullion has gained 19% this year as central banks globally embraced looser monetary policy to boost growth.

Prices are up for a fifth session in six and heading for its biggest annual gain since 2010.

News comes at a difficult time for Zimbabwe, with its economy forecast to contract 6.5% this year because of crippling foreign-currency, fuel, wheat and power shortages.