0.64 1.69 1.56 0.58 140 120 100 80 60 40 20 0 Mon Tue Wed Thu Graph 8.1 Data plotted in the graph appear in the table below. Mon Tue Wed Thu Obs #Day Demand Obs # Day Demand 1 Mon 33 12 Fri 54 2 Tue 34 13 Sat 95 3 Wed 37 14 Sun 92 14 Thu 42 15 Mon 58 Fri 44 16 Tue 63 16 Sat 79 17 Wed 67 7 Sun 86 18 Thu 70 8 Mon 51 19 Fri 74 9 Tue 50 20 Sat 114 10 Wed 51 21 Sun 119 11 Thu 52 Refer to Graph 8.1. What is the seasonal index for the first Saturday in the data set? Demand Sun Mon Tue Wed Thu Fri