This (link below) is, I think, an interesting set of data from the CIA. It ranks 156 countries of the world by their reserves of foreign currencies and gold.
I note the UK is 25th on this list, right below Turkey, Denmark, Poland and Iran, who also are not in the top 20.
The top 5 may hold some interesting surprises for many, or more accurately I would think interesting absenses.
If you wanted to break out how much of a country's reserves are gold from the data linked above, rather than foreign currencies, my friend Patrick rather handily provided a link this morning to a germane article on Zero Hedge.
(Thanks, Patrick ;-) )