condition	mean	min	max
0 h after light	5.18991	4.80165	5.57817
4 h after light	7.38258	7.19142	7.57374
8 h after light	12.8701	11.5847	14.1555
4 h after dark	13.53145	12.2966	14.7663
8 h after dark	9.12585	7.7263	10.5254
12 h after dark	5.359115	5.19844	5.51979