condition	mean	min	max
4 h after light	9.268545	9.11228	9.42481
8 h after light	11.2747	10.4742	12.0752
12 h after light	15.158850000000001	14.5566	15.7611
4 h after dark	20.64425	19.6825	21.606
8 h after dark	14.57735	14.3919	14.7628
12 h after dark	12.54005	11.7351	13.345