What google has to do with? btw, if you can read(in your given link):
The figures here are represented as a percentage of annual gross domestic product. The public debt relative information provided by national sources is not always objective and true, given the fact that there is no independent research in these matters.
Just wonder...Where do you see US GDP - Gross Domestic Product(Gross domestic product (GDP) is the market value of all officially recognized final goods and services produced within a country in a given period of time.)? @ Wallmart? Car dealerships? any other places?
Can a Wall Street - Pinocchio Story, to be considered as GDP?
When I do mostly encounter US GDP? @ ATM Machines, when I do need cash...It is a big part of US GDP - Federal Reserve Money Printing Machines...
Now, US $ is recognized worldwide, because all transactions worldwide in Oil is in US Dollars and many countries have a lot of US Dollars in their currency reserves.
Imagine, what would happen, if overnight, all Transactions for Oil would be changed to another currency...What would happen with a mighty US$?
Why IRAN? Are Really US upset because of their nuclear stuff?
Or maybe, that Iran is selling oil to China in chinese currency and in return, Iran is buying goods from China with currency they got from Oil sales...NO US $$$ involved - it's pretty scary...It's actually, how an ECONOMY REALLY SHOULD WORK...