View Nominal vs Real 3-Month Interest Rate updated to 2010
I have plotted the 3-Month T-bills: Secondary Market rate (green line) vs the inflation adjusted (i.e. Real) 3-Month T-bills rate (orange) from Jan 1934-Sept 2008. The inflation number I used is CPI-U 3-month % change multiplied by 4.
Data from Federal Reserve Bank of St. Louis