condition	mean	min	max
4 h after light	652.4	652.4	652.4
8 h after light	612.1	588.7	635.5
12 h after light	638.75	586.9	690.6
4 h after dark	624.85	557.7	692.0
8 h after dark	820.55	794.0	847.1
12 h after dark	666.0	634.8	697.2