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 average total debt per household â including mortgages â was Â£54,178 in August. The revised figure for July was Â£54,047. Per adult in the UK thatâs an average debt of Â£28,578 in August â around 112% of average earnings. This is up from a revised Â£28,647 in July.