condition	mean	min	max
4 h after light	6.79274	5.74867	7.83681
8 h after light	5.1876999999999995	5.07112	5.30428
12 h after light	6.071305	5.97476	6.16785
4 h after dark	6.8028949999999995	6.64895	6.95684
8 h after dark	7.58905	7.57781	7.60029
12 h after dark	7.4114450000000005	7.12931	7.69358