Hi BH, yes agree. Gave it more thought, came up with this one, lol!
During 70s, both Oil and Gold were in high demand. From 1986-2000, Oil surplus, so Gold in relatively high demand. From 1994 onwards, Oil starting to become more scarce so from 2000 Oil in high demand, Gold in relatively low demand. From 2007, Gold starting to become more scare, so that from 2014 Gold in high demand and Oil in relatively low demand (plenty of natural gas and electric cars around etc)
