condition	mean	min	max
4 h after light	677.0	677.0	677.0
8 h after light	600.2	591.4	609.0
12 h after light	652.25	574.7	729.8
4 h after dark	627.45	597.3	657.6
8 h after dark	585.35	579.6	591.1
12 h after dark	575.2	553.7	596.7