b. Briefly talk about the yield to maturity numbers in the table below, explain one by one what does the number means? Why are some numbers negative? 11/4/2021 Yield to Maturity (%) 0.05 0.12 Instruments Commercial Paper Nonfinancial 1-month Financial 3-month US government securities Treasury constant maturities Nominal 6-month 1-year 3-year 5-year 7-year 10-year 30-year Inflation indexed 5-year 7-year 10-year 30-year Inflation-indexed long-term average 0.10 0.24 0.97 1.34 1.58 1.64 1.96 -169 -1.30 -0.97 -0.39 -0.46