x1	u_x1
NaN	NaN
432.078002581253	3.98356521426632
1081.11204604748	9.96768623184489
1603.8869717179	14.7876321775049
2266.31147257553	20.8962730650563
2772.30191199517	25.55938460431
3364.59176254925	31.0218444594139
3943.17049931379	36.3556764914983
4527.47122254653	41.7417498071541
5086.87047481247	46.9011720453876
5584.13804094479	51.4860075143976
