Suppose that the current 1-year rate (1-year spot rate) and expected 1-year T-bill rates over the following three years (i.e., years 2,3 , and 4 , respectively) are as follows: 1R1=2.86%,E(2r1)=4.20%,E(3r1)=4.70%,E(4r1)=6.20% Using the unbiased expectations theory, calculate the current (long-term) rates for one-, two-, three-, and four-yearmaturity Treasury securities. (Do not round intermediate calculations. Round your answers to 2 decimal places.)