condition	mean	min	max
4 h after light	5.2	5.2	5.2
8 h after light	5.35	3.5	7.2
12 h after light	9.85	7.3	12.4
4 h after dark	19.4	6.0	32.8
8 h after dark	12.25	7.6	16.9
12 h after dark	19.1	7.0	31.2