With Washington locked in a debt-ceiling stalemate, debt seems to be on everyone’s mind. So, how does US debt compare with that of European countries, embroiled in a debt crisis of their own? In April, the International Monetary Fund estimated that the US government's gross debt amounted to 99 percent of gross domestic product. That’s high, but less than four of Europe's five largest debtors. Editor’s note: All figures are come from International Monetary Fund’s World Economic Outlook database that was updated in April 2011. See the full statistics here.