Retailer XYZ sells Product D, which is in short supply. Every day, XYZ starts with 120 units of Product D. XYZ is open for three hours. The following table shows the cumulative sales of Product D that occurred by the end of each hour, for the last five days. Using this data, estimate the uncensored demand for Product D on Day 5. Hour 1 Hour 2 Hour 3 Day 1 18 50 60 Day 2 32 60 80 Day 3 45 70 90 Day 4 30 96 120 Day 5 80 120