time	parent	M1	M2
0	103.5	NA	NA
0	102.8	NA	NA
1	98.9	4.7	NA
1	85.4	4.9	0.6
3	71.3	6.7	3.2
3	66.3	8.1	2.9
7	56.3	7.3	9.8
7	55.2	8	10.1
14	36.4	4.3	17.5
14	44.2	3.5	15.4
28	26.5	0.5	16.6
28	30.9	0.9	15.9
60	13.8	0.6	12.7
60	14	NA	12.3
90	8.4	NA	8.9
90	7.3	0.8	9
120	3.9	0.4	6.8
120	5.2	0.3	5.3