condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	2.25	1.7	2.8
12 h after light	3.05	0.8	5.3
4 h after dark	24.3	2.6	46.0
8 h after dark	5.0	0.9	9.1
12 h after dark	3.8	1.8	5.8