condition	mean	min	max
4 h after light	2.6	2.6	2.6
8 h after light	6.75	4.9	8.6
12 h after light	8.25	6.1	10.4
4 h after dark	3.75	3.4	4.1
8 h after dark	21.5	6.4	36.6
12 h after dark	6.4	5.0	7.8