condition	mean	min	max
4 h after light	8.067675000000001	7.3833	8.75205
8 h after light	4.98207	4.81755	5.14659
12 h after light	5.69332	5.68152	5.70512
4 h after dark	5.975443333333334	5.91129	6.04373
8 h after dark	7.248166666666667	7.20647	7.32157
12 h after dark	8.21947	7.9209	8.68645