Nick Laird of goldchartsrus.com, perhaps the world’s leading gold data expert, has cobbled it all together to produce this chart, showing cumulative gold held in China to be around 28,911 tonnes. I’ve spoken to numerous analysts – Ross Norman, Bron Suchecki and Koos Jansen – and they all arrive at similar estimates.

China owns a lot more gold than it’s letting on – and here’s why