Historical interest rate weekly data from January 5,
1962 to present may be found at:
http://www.federalreserve.gov/releases/h15/data.htm
Under "Historical Data", scroll down to "U.S.
government securities", "Treasury constant maturities", "Nominal",
"1-year". Off to the right select, "Weekly (Friday)". This will open
a spreadsheet with weekly interest rates dating from January 5, 1962
to present. Data is updated each Monday.
If you have any questions, please contact Rick Krall (317)
229-3918, Tricia Anderson (317) 229-3917, or Kim Clark (317)
229-3914.