Monthly Interest Rates, 1937-99
https://www.ssa.gov › oact › progdataHistorical document. Nominal interest rates on special issues (percent). Month, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947.
Euribor rates, daily values
https://www.suomenpankki.fi › chartsEuribor rates and Euro short-term rate (€STR) ; 1 month, 3.609, -0.001. 0, 3.388. 1, 3.393. 2, 3.377. 3, 3.425. 4, 3.438. 5, 3.456. 6, 3.457. 7, 3.446. 8, 3.464.