y x 1 90.01 0.99 2 89.05 1.02 3 91.43 1.15 4 93.74 1.29 5 96.73 1.46 6 94.45 1.36 7 87.59 0.87 8 91.77 1.23 9 99.42 1.55 10 93.65 1.4 11 93.54 1.19 12 92.52 1.15 13 90.56 0.98 14 89.54 1.01 15 89.85 1.11 16 90.39 1.2 17 93.25 1.26 18 93.41 1.32 19 94.98 1.43 20 87.33 0.95