condition	mean	min	max
4 h after light	1.6	1.6	1.6
8 h after light	12.2	2.0	22.4
12 h after light	3.95	2.0	5.9
4 h after dark	2.6	1.5	3.7
8 h after dark	2.55	1.7	3.4
12 h after dark	3.25	1.7	4.8