length	num_GC	number_of_fragments
30	0	2909286
30	1	4404200
30	2	9714706
30	3	21916506
30	4	46915582
30	5	90496220
30	6	155263884
30	7	237711726
30	8	327498830
30	9	407356354
30	10	460987726
30	11	479583474
30	12	464034880
30	13	425405354
30	14	380396982
30	15	342325686
30	16	309424156
30	17	268950918
30	18	208929138
30	19	140872540
30	20	83440814
30	21	45070550
30	22	23157276
30	23	11696958
30	24	6061836
30	25	3264266
30	26	1721924
30	27	824248
30	28	332064
30	29	108308
30	30	27058
