condition	mean	min	max
4 h after light	562.1	562.1	562.1
8 h after light	550.55	520.2	580.9
12 h after light	445.45	402.0	488.9
4 h after dark	507.85	503.0	512.7
8 h after dark	466.55	462.3	470.8
12 h after dark	581.35	528.0	634.7