Consider the following spot interest rates for maturities of one, two, three, and four years. n = 4.0% r2 = 4.5% 3 = 5.2% 14 = 6.0% Assuming a constant real interest rate of 2 percent, what are the approximate expected inflation rates for the next four years? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) 21% 14 1%