condition	mean	min	max
4 h after light	480.5	480.5	480.5
8 h after light	556.05	533.9	578.2
12 h after light	579.3	578.1	580.5
4 h after dark	493.0	361.1	624.9
8 h after dark	367.4	278.7	456.1
12 h after dark	277.4	247.7	307.1