Assume that the Pure Expectation Theory determines interest rates in the markets. Today's market rates for different maturities are as follows: 1 year 2 years = 4.5% 3 years = 5.4% 4 years = 6.7% 5 years - 7.7% 10 pts 3.9% What is the implied 2 year interest rate for investing in 3 years? Enter your answer as a percentage, without the percentage sign ("%), and rounded to 1 decimal. For example, if your answer is 7.2134%,