condition	mean	min	max
4 h after light	38.63845	37.077	40.1999
8 h after light	23.3719	23.1968	23.547
12 h after light	19.08325	16.3606	21.8059
4 h after dark	20.9956	19.9927	21.6939
8 h after dark	40.6841	38.2138	42.8315
12 h after dark	39.57156666666667	38.3801	40.4861