condition	mean	min	max
4 h after light	7.3024	7.24485	7.4043399999999995
8 h after light	7.223116666666667	7.106330000000001	7.32923
12 h after light	7.40562	7.380539999999999	7.4185
4 h after dark	7.42146	7.39094	7.46633
8 h after dark	7.541293333333333	7.428889999999999	7.71137
12 h after dark	7.375540000000001	7.1969	7.485310000000001