condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	3.0	2.5	3.5
12 h after light	2.8	2.0	3.6
4 h after dark	10.25	4.0	16.5
8 h after dark	3.0	2.5	3.5
12 h after dark	3.3	2.6	4.0