condition	mean	min	max
4 h after light	3151.9	3151.9	3151.9
8 h after light	2702.75	2592.5	2813.0
12 h after light	3407.6	2608.8	4206.4
4 h after dark	3563.55	3320.6	3806.5
8 h after dark	4082.05	3026.1	5138.0
12 h after dark	4440.85	4313.1	4568.6