condition	mean	min	max
4 h after light	15.681455	14.893211	16.469699
8 h after light	15.2386375	14.859336	15.617939
12 h after light	14.001093000000001	12.713869	15.288317
4 h after dark	14.6181205	14.168258	15.067983
8 h after dark	15.220254	13.777621	16.662887
12 h after dark	14.893211	14.893211	14.893211