The inflation rate in the United States has averaged 3\% a year since 1900. Use the data in the table below to answer the following question: Average rates of return on Treasury bills, government bonds, and common stocks, 1900-2020. What was the average real rate of return on Treasury bills, Treasury bonds, and common stocks in that period? Note: Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Answer is complete but not entirely correct