1 2 3 4 5 6 7 8 9 10 11
y,x1,x2,x3 10.5,1.2,2.3,0.5 12.3,2.1,3.1,0.7 15.2,3.5,4.2,0.9 18.7,4.2,5.1,1.2 20.1,5.3,6.0,1.5 22.8,6.1,7.2,1.8 25.3,7.4,8.1,2.1 28.2,8.2,9.3,2.4 30.5,9.1,10.2,2.7 32.8,10.3,11.1,3.0