A company's after-tax income represents the net income after the firm has deducted all federal, state and local taxes owed. It also amounts to the disposable income a company has on hand.
The Census Bureau's Quarterly Financial Report (QFR), which was released in June, presents industry data based on information from about 11,000 corporations. The data comes from income and earnings statements, balance sheets and other records from manufacturers with assets of at least $250,000, the bureau said.
Other statistics come from companies with at least $50 million in assets in the categories of mining, wholesale trade, retail, professional and technical services, and information.