condition	mean	min	max
4 h after light	3.0	3.0	3.0
8 h after light	4.300000000000001	3.7	4.9
12 h after light	2.5	2.1	2.9
4 h after dark	6.95	6.9	7.0
8 h after dark	4.25	4.2	4.3
12 h after dark	3.55	3.5	3.6