condition	mean	min	max
4 h after light	3.356335	3.09818	3.61449
8 h after light	3.104875	3.04621	3.16354
12 h after light	3.55769	3.35901	3.75637
4 h after dark	6.324566666666667	6.18877	6.44312
8 h after dark	5.67448	5.4554	5.97907
12 h after dark	4.865776666666667	4.22175	5.7675