x1	x2	x3	x4	y
47.3	0.9	4	76	105.5
53.1	0.8	6	55	113.8
56.7	0.8	4	65	115.2
48.8	0.5	7	67	118.9
42.7	1.1	7	74	148.9
44.3	1.1	6	76	120.2
44.5	0.7	8	68	121.6
37.7	0.7	7	79	140.0
36.9	1.0	5	73	141.5
28.1	1.8	6	68	141.9
32.0	0.8	8	81	152.8
34.7	0.8	10	68	156.5