Comments from feedback form - "The Canadian and Australian do..."
The Canadian and Australian dollar share the $ it is common for ALL countries that use the dollar. I hate to be a nit picker, but Canada's economy didn't crumble like everyone else's.
'The other currencies with a symbol...' A very odd claim. Canadian dollars, Australian dollars, Barbadian dollars, Colombian pesos, Mexican pesos, Guernsey pounds, Falklands pounds... etc., etc.
Or indeed w:Currency sign, where there are dozens. I was quite puzzled by that bit of the article myself. It looks like it could come from a misreading of the Reuters article.