Attempts Keep the Highest / 2 4. Inflation and interest rates The following table shows the average nominal interest rates on six-month Treasury bills between 1971 and 1975, which determined the nominal interest rate that the U.S. government paid when it issued debt in those years. The table also shows the inflation rate for the years 1971 to 1975. (All rates are rounded to the nearest tenth of a percent.) Nominal Interest Rate Inflation Rate Year (Percent) (Percent) 1971 4.5 1972 4.5 1973 7.2 5.3 1974 8.0 11.0 1975 6.1 Source: "FRED Economic Data," Federal Reserve Bank of St. Louis, last modified September 23, 2019, accessed September 24, 2019, https://fred.stlouisfed.org. On the following graph, use the orange points (square symbol) to plot the nominal interest rates for the years 1971 to 1975. Next, use the green points (triangle symbol) to plot the real interest rates for those years