Answer: 

National Income and Product Accounts (NIPAs), produced by the Bureau of Economic Analysis (BEA), are a set of economic accounts that provide information on the value and composition of output produced in the United States during a given period and on the types and uses of the income generated by that production. To gain an understanding of NIPA, check out A Primer on GDP and the National Income and Product Accounts and introduction to the National Income and Product Accounts. Also make sure to look at the NIPA Handbooks, ranging from topics such as Personal Consumption Expenditure, Net Exports of Goods and Services, and Corporate Profits.

NIPA data is available from the BEA and is easily downloaded into a spreadsheet.