condition	mean	min	max
4 h after light	5.285335	5.10935	5.46132
8 h after light	2.260355	1.89632	2.62439
12 h after light	7.4315	7.06577	7.79723
4 h after dark	19.4252	17.7976	21.0528
8 h after dark	14.4854	12.8157	16.1551
12 h after dark	10.08766	9.18812	10.9872