condition	mean	min	max
4 h after light	1193.9	1193.9	1193.9
8 h after light	1157.4	1146.3	1168.5
12 h after light	491.45	171.6	811.3
4 h after dark	154.5	124.5	184.5
8 h after dark	190.25	139.5	241.0
12 h after dark	380.75	275.1	486.4