condition	mean	min	max
4 h after light	1.8	1.8	1.8
8 h after light	11.2	2.5	19.9
12 h after light	3.25	0.9	5.6
4 h after dark	2.45	2.0	2.9
8 h after dark	5.3	4.8	5.8
12 h after dark	2.55	2.5	2.6