treat	rat	p1	p2	p3	p4
P	1	7.5	8.6	6.9	0.8
P	2	10.6	11.7	8.8	1.6
P	3	12.4	13.0	11.0	5.6
P	4	11.5	12.6	11.1	7.5
P	5	8.3	8.9	6.8	0.5
P	6	9.2	10.1	8.6	3.8
N	7	13.3	13.3	12.9	11.1
N	8	10.7	10.8	10.7	9.3
N	9	12.5	12.7	12.0	10.1
N	10	8.4	8.7	8.1	5.7
N	11	9.4	9.6	8.0	3.8
N	12	11.3	11.7	10.0	8.5