condition	mean	min	max
4 h after light	7.352183	6.737923	7.966443
8 h after light	8.413545000000001	7.843117	8.983973
12 h after light	7.921357	7.808241	8.034473
4 h after dark	8.381253999999998	8.162579	8.599929
8 h after dark	7.925504500000001	6.86936	8.981649
12 h after dark	8.48634	8.48634	8.48634