condition	mean	min	max
4 h after light	420.0	420.0	420.0
8 h after light	504.85	498.5	511.2
12 h after light	478.25	474.5	482.0
4 h after dark	851.15	476.8	1225.5
8 h after dark	1063.95	985.2	1142.7
12 h after dark	901.45	824.1	978.8