A stock has annual returns of 5 percent, 21 percent, -12 percent, 7 percent, and 6 percent for the past five years. The arithmetic average of these returns is _____ percent while the geometric average return for the period is __ percent. 5.80; 4.86 5.80; 5.03 5.62; 5.03 5.40; 5.03 5.40; 4.86