condition	mean	min	max
4 h after light	6.9712233333333335	6.49231	7.23265
8 h after light	5.80913	5.70294	5.887919999999999
12 h after light	6.631906666666667	6.58132	6.668989999999999
4 h after dark	6.969336666666667	6.830310000000001	7.06535
8 h after dark	7.51849	7.2111600000000005	7.904319999999999
12 h after dark	8.477716666666666	8.3989	8.53397