4. Based on the historical data from 1926 to 2015 in the U.S., Fill in the blanks. Average Annual Return Standard Deviation of Annual Returns Large-company stocks Small-company stocks Long-term corporate bonds Long-term government bonds U.S. Treasury bills 4. Based on the historical data from 1926 to 2015 in the U.S., Fill in the blanks. Average Annual Return Standard Deviation of Annual Returns Large-company stocks Small-company stocks Long-term corporate bonds Long-term government bonds U.S. Treasury bills