Imagine you are going to use U.S. Savings I-Bonds to save for a down payment on a car you want to purchase in five years, and you are going to buy $600 in bonds immediately, $600 in bonds in one year, and $700 in bonds in two years. Also assume the current interest rate will stay the same at 1.96% per year. How much money will you have toward the purchase of a car in five years? Ignore the 3-month interest penalty for cashing the bonds before five years. Explain why less interest is earned on larger bond purchases.