condition	mean	min	max
4 h after light	630.5	630.5	630.5
8 h after light	561.35	547.5	575.2
12 h after light	408.85	274.7	543.0
4 h after dark	307.55	288.8	326.3
8 h after dark	337.1	327.9	346.3
12 h after dark	325.55	311.0	340.1