condition	mean	min	max
4 h after light	8.08404	8.06463	8.10345
8 h after light	7.72242	7.53241	7.91243
12 h after light	7.8375699999999995	7.32473	8.35041
4 h after dark	9.90542	8.56854	11.2423
8 h after dark	9.42473	9.02592	9.82354
12 h after dark	9.837285	9.04627	10.6283