condition	mean	min	max
4 h after light	6.229613333333333	4.16216	8.10386
8 h after light	3.08632	0.89874	5.03944
12 h after light	2.59068	1.26279	4.46366
4 h after dark	4.22111	2.88492	4.89017
8 h after dark	8.89791	6.21053	10.2631
12 h after dark	13.897333333333334	12.0528	16.2668