level,    height,        error (%)
2	0.583861	1.001363687
3	0.699247	0.97868234
4	0.828886	0.956000993
5	0.973136	0.933319646
6	1.137158	0.910638299
7	1.321746	0.887956952
8	1.523315	0.862070876
9	1.74769		0.817310233
10	2.001154	0.785186649
11	2.28562		0.761447327
12	2.603658	0.749606762
13	2.958331	0.728550976
14	3.353453	0.678748916
15	3.799495	0.646161854
16	4.296768	0.64277257
17	4.852567	0.647252069
18	5.482894	0.60454254
19	6.186011	0.514221183
20	6.977809	0.394462302
21	7.867713	0.323853411
22	8.872742	0.25121997
23	10.010967	0.195111244
24	11.220463	0.182301994
25	12.462545	0.163483956
26	13.732089	0.165158103
27	15.051692	0.219995979
28	16.479813	0.231698469
29	18.075117	0.243699065