condition	mean	min	max
4 h after light	8.40958	3.91015	12.9513
8 h after light	6.037726666666667	1.3025	11.0406
12 h after light	5.08524	2.47365	7.30338
4 h after dark	8.41063	7.10676	11.0048
8 h after dark	6.995196666666667	5.14569	8.10424
12 h after dark	5.35374	4.40494	6.92597