Based on economists forecasts and analysis, one-year Treasury bill rates and liquidity premiums for the next four years are expected to be as follows: 1R1 = 0.48% E(2r1) = 0.83% L2 = 0.04% E(3r1) = 0.93% L3 = 0.15% E(4r1) = 1.23% L4 = 0.17% Calculate the yield to maturity for four years. (Round your percentage answers to 2 decimal places. (e.g., 32.16))