10-year Nominal Treasury RatesPublished by the Federal Reserve System of the United States. From this page, in the 'Build your package' section, click on 'Build package'. In the Data set dropdown, select 'Selected Interest Rates' and click continue. In the Instrument dropdown, select 'TCMNOM Treasury constant maturities/Nominal' and click continue. In the Maturity dropdown, select 'Y10 10-year' and click continue. In the Frequency dropdown, selct 'Monthly' and click 'Add to package'. Click on Format package. Change the dates to the last 10 years. Choose Excel for the file type and click on 'Go to download'. Then, click on 'Download file' to see your data.