Government economists have forecasted one-year T-bill rates for the following five years as follows:

Year	1-year rate
1	4.25%
2	5.15%
3	5.50%
4	6.25%
5	7.10%

You have liquidity premium 0.25% for the next two years and 0.50% thereafter. What do you expect the current interest rate is on a 4-year bond?