You have fixed index annuity which is credited with returns based on the investment gains of the S&P 500 stock index. The annuity is subject to a participation rate of 70 percent and a maximum annual return of 8 percent. During the current year, the S&P 500 index increased from 2,000 to 2,200. Based on this result, what overall interest rate would be credited to the policy this year? (Express your answer as a percent and round to two decimal places. For example, if your answer is 8.25 percent, you would input 8.25 rather the 0.0825). Your