Assume the following. In 2008, the U.S. had real GDP of $17.1 trillion and the CPI was at 90.82. At the end of 2018, real GDP in the U.S. was $21.4 trillion and the CPI was at 104.92. Calculate the compounded (ie, geometric) growth rate for this 10-year period. (Use Excel to answer this question. Do not round Intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)