x1	u_x1
NaN	NaN
413.895469794541	3.81632083030164
1052.56174622807	9.70414029794317
1556.26421761927	14.3480487505241
2209.16202360302	20.3696529173449
2726.68174207708	25.139220703095
3420.2981433022	31.5337582990478
3876.80663141623	35.7436282359168
4427.46544714833	40.819448693728
5036.0945442331	46.431265226254
5596.25787106141	51.5956657366983
