Suppose we observe the 3-year Treasury security rate (₁R₃) to be 6 percent, the expected 1-year rate next yearE(₂r₁)to be 4 percent, and the expected 1-year rate the following yearE(₃r₁)to be 5 percent. If the unbiased expectations theory of the term structure of interest rates holds, what is the 1-year Treasury security rate, ₁R₁? (Round your answer to 2 decimal places.)