This series is calculated by FRB-St. Louis using data series from the Bureau of Economic Analysis.
FRB-St. Louis District States include Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri and Tennessee.
Please visit http://research.stlouisfed.org/fred2/personalincome for documentation on the derivation of personal income.
Source: US. Bureau of Economic Analysis
Release: State Personal Income (Quarterly)
US. Bureau of Economic Analysis, Personal Contributions for Social Insurance in FRB-St. Louis District States (DISCONTINUED) [DSOSOC], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/DSOSOC, February 6, 2016.