You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 20 percent, -12 percent, 17 percent, 20 percent, and 10 percent. Suppose the average inflation rate over this period was 1.7 percent and the average T-bill rate over the period was 4.6 percent. What was the average real risk-free rate over this time period? What was the average real risk premium?