group	day1	day2	day3	day4
1	0.33	0.7	2.33	3.2
1	5.3	0.9	1.8	0.7
1	2.5	2.1	1.12	1.01
1	0.98	0.32	3.91	0.66
1	0.39	0.69	0.73	2.45
1	0.31	6.34	0.63	3.86
2	0.64	0.7	1	1.4
2	0.73	1.85	3.6	2.6
2	0.7	4.2	7.3	5.4
2	0.4	1.6	1.4	7.1
2	2.6	1.3	0.7	0.7
2	7.8	1.2	2.6	1.8
2	1.9	1.3	4.4	2.8
2	0.5	0.4	1.1	8.1