condition	mean	min	max
4 h after light	5.19239	3.57477	6.81001
8 h after light	13.211400000000001	12.9341	13.4887
12 h after light	17.4377	16.4842	18.3912
4 h after dark	10.659976666666667	8.74673	12.4253
8 h after dark	7.564053333333334	5.52747	8.68694
12 h after dark	6.080173333333334	4.062	8.2058