condition	mean	min	max
4 h after light	6.852163333333333	4.95697	9.6156
8 h after light	9.07661	4.10234	13.4464
12 h after light	12.224540000000001	6.86042	18.2563
4 h after dark	15.05172	5.72406	22.5547
8 h after dark	4.98146	1.94706	7.35706
12 h after dark	5.073506666666667	3.81844	6.46194