3. Budget balances and the national debt The following table lists federal expenditures, revenues, and GDP for the U.S. economy during several years. All numbers are in billions of dollars. Plot the data for revenues and expenditures as a percentage of GDP on the following graph, rounded to the nearest percent. Use the orange points (square symbol) for expenditures and the green points (triangle symbol) for revenues. Line segments will automatically connect the points. In which years was the government's budget in deficit? Check all that apply. 1948 1956 1964 1972 1980 In 1964 , the national debt by.