"X" "Y" 4.6 .66 17 .92 17.4 1.45 18 1.03 18.5 .7 22.4 .73 26.5 1.2 30 .8 34 .91 38.8 1.19 48.2 1.15 63.5 1.12 65.8 1.37 73.9 1.45 77.2 1.5 79.8 1.36 84 1.29