"Xt2 v time
0.0000000000000	0.0000000000000
0.0250000000000	0.0000653912802
0.0500000000000	0.0002590330301
0.0750000000000	0.0005763481826
0.1000000000000	0.0010104153937
0.1250000000000	0.0015526245134
0.1500000000000	0.0021932696375
0.1750000000000	0.0029220268664
0.2000000000000	0.0037283136930
0.2250000000000	0.0046015610375
0.2500000000000	0.0055314380892