condition	mean	min	max
4 h after light	7.35647	7.16764	7.46908
8 h after light	7.39585	7.309660000000001	7.55845
12 h after light	7.1053500000000005	6.96703	7.26014
4 h after dark	7.561233333333333	7.3647100000000005	7.892239999999999
8 h after dark	7.61446	7.370239999999999	7.77533
12 h after dark	7.358873333333333	7.12792	7.61707