Fiscal Year 2022 : Table 9.3 - Major Public Physical Capital Investment Outlays in Percentage Terms: 1940–2022
United States. Office of Management and Budget. "Fiscal Year 2022 : Table 9.3 - Major Public Physical Capital Investment Outlays in Percentage Terms: 1940–2022," Historical Tables, Budget of the United States Government (May 28, 2021). https://fraser.stlouisfed.org/title/383/item/603956/content/xlsx/BUDGET-2022-TAB-10-3, accessed on April 18, 2026.
United States Government Publishing Office