condition	mean	min	max
4 h after light	9.2	9.2	9.2
8 h after light	19.15	6.0	32.3
12 h after light	36.25	34.2	38.3
4 h after dark	29.05	3.6	54.5
8 h after dark	5.85	5.8	5.9
12 h after dark	14.8	10.5	19.1