Assume the current interest rate on a one-year Treasury bond (₁R₁) is 2.15 percent, the current rate on a two-year Treasury bond (₁R₂) is 2.31 percent, and the current rate on a three-year Treasury bond (₁R₃) is 2.42 percent. If the unbiased expectations theory of the term structure of interest rates is correct, what is the one-year interest rate expected on T-bills during year 3 (E(₃r₁) or₃f₁)?