sib1	sib2
9.4299	10.1081
8.8167	9.1433
9.2727	8.5419
11.2613	9.3872
11.4812	9.8165
9.0322	8.6466
9.4679	9.997
10.5525	10.2371
11.9802	12.0492
9.551	9.1154
15.3319	15.2427
13.1941	14.0076
15.2467	16.8792
13.2278	13.4282
15.6064	15.4658
12.892	15.3733
15.2966	15.4658
13.8546	16.1203
14.5985	14.3011
14.566	15.0472