An investment has a cost $40,000 with net cash flows of $20,000 each year for 4 years. The company has a required rate of return of 8%. If the first four periods' discount factors, based on 8%, taken from a "present value of 1" table are 0.9259, 0.8573, 0.7938, 0.7350, what is the break-even time of the investment?