x1	u_x1
NaN	NaN
419.343658414628	3.86659382255736
1048.6396400253	9.66798741660746
1564.00132224783	14.4209441258792
2203.95567869594	20.3218450006288
2713.17401509992	25.014310231056
3383.96215197533	31.2005100515396
3883.97076437386	35.8098274155618
4414.33592287014	40.6981878667646
5028.53071215052	46.3620268198083
5613.30171306329	51.7520854601829
