condition	mean	min	max
4 h after light	7.5158466666666675	7.443810000000001	7.625260000000001
8 h after light	7.51059	7.164680000000001	7.704969999999999
12 h after light	7.639773333333333	7.324510000000001	7.91533
4 h after dark	7.55321	7.35623	7.70603
8 h after dark	7.525406666666666	7.16475	7.93658
12 h after dark	7.07099	6.707889999999999	7.35255