Source: US. Bureau of Economic Analysis
Release: Personal Income and Outlays
BEA Account Code: A064RC1
A Guide to the National Income and Product Accounts of the United States (NIPA) - (http://www.bea.gov/national/pdf/nipaguid.pdf)
US. Bureau of Economic Analysis, Personal Income Receipts on Assets: Personal Interest Income [PII], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/PII, July 25, 2016.