time	length
10	.2
20	3.8
30	5.9
40	3.1
50	6.8
60	8.4
70	11.7
80	10.8
90	13.5
100	15.4
110	17.9
120	18.6
130	22.1
140	22.9
150	27.3
160	27.8
170	27.5
180	28