condition	mean	min	max
4 h after light	4.376016666666667	4.25237	4.45582
8 h after light	4.4468000000000005	4.32108	4.5942300000000005
12 h after light	4.35936	4.30501	4.39511
4 h after dark	4.372833333333333	4.33219	4.40693
8 h after dark	4.3940166666666665	4.3135900000000005	4.49191
12 h after dark	4.36749	4.308590000000001	4.41426