condition	mean	min	max
4 h after light	5.563236666666667	5.48511	5.71925
8 h after light	5.560960000000001	5.4219800000000005	5.76762
12 h after light	5.5515300000000005	5.2371300000000005	5.942480000000001
4 h after dark	5.310453333333333	5.25855	5.40808
8 h after dark	5.329696666666666	5.2569099999999995	5.47152
12 h after dark	5.39939	5.28986	5.52862