condition	mean	min	max
4 h after light	7.48119	7.4191199999999995	7.52791
8 h after light	6.702446666666667	6.51486	6.8636
12 h after light	6.313176666666667	6.01583	6.5671
4 h after dark	6.543373333333333	6.40522	6.74252
8 h after dark	6.72966	6.59547	6.882689999999999
12 h after dark	6.962113333333334	6.749210000000001	7.230810000000001