condition	mean	min	max
4 h after light	1.6	1.6	1.6
8 h after light	3.85	1.7	6.0
12 h after light	16.25	2.5	30.0
4 h after dark	6.5	5.4	7.6
8 h after dark	2.75	2.6	2.9
12 h after dark	5.8	3.4	8.2