"gt13 v time
0.0000000000000	-0.0000000000000
0.0250000000000	-0.0000788786755
0.0500000000000	-0.0003135272239
0.0750000000000	-0.0007003958965
0.1000000000000	-0.0012341362106
0.1250000000000	-0.0019082071137
0.1500000000000	-0.0027152123846
0.1750000000000	-0.0036473152911
0.2000000000000	-0.0046964363656
0.2250000000000	-0.0058543630043
0.2500000000000	-0.0071128067245