The analysis of IRS records back to 1913 found that the nation's very wealthiest—those making more than $394,000—earned 19.3 percent of all household income in 2012, while the top 10 percent took home a record 48.2 percent of total earnings, The Associated Press reported.
In 2012, incomes of the top one percent rose nearly 20 percent compared to a one percent increase for the remaining 99 percent.