It is estimated that at least 120 million copies of McGuffey's Readers were sold between 1836 and 1960, placing its sales in a category with the Bible and Webster's Dictionary. Since 1961, they have continued to sell at a rate of some 30,000 copies a year.
Our researchers found the median debt per American household to be $2,300, while the average debt stands at $5,700. Combined data from the U.S. Census Bureau and the Federal Reserve allowed us to dive deeper into credit card debt in the United States, and look beyond the face value of those two figures.
The U.S. debt is the sum of all outstanding debt owed by the Federal Government. It's greater than $19 trillion and is tracked by the national debt clock. America's debt is the largest in the world for a single country. It runs neck and neck with that of the European Union, which is an economic union of 28 countries. For more, see Sovereign Debt Rankings.