25 lines (24 with data), 413 Bytes

chr1	0	248956421
chr2	0	242193528
chr3	0	198295558
chr4	0	190214554
chr5	0	181538258
chr6	0	170805978
chr7	0	159345972
chr8	0	145138635
chr9	0	138394716
chr10	0	133797421
chr11	0	135086621
chr12	0	133275308
chr13	0	114364327
chr14	0	107043717
chr15	0	101991188
chr16	0	90338344
chr17	0	83257440
chr18	0	80373284
chr19	0	58617615
chr20	0	64444166
chr21	0	46709982
chr22	0	50818467
chrX	0	156040894
chrY	0	57227414