Y\X,10,20,30,40,50
5,0.1,0.2,0.3,0.4,0.5
10,0.2,0.4,0.6,0.8,1.0
15,0.3,0.6,0.9,1.2,1.5
20,0.4,0.8,1.2,1.6,2.0
25,0.5,1.0,1.5,2.0,2.5