condition	mean	min	max
4 h after light	8.021566666666667	7.77133	8.16245
8 h after light	8.056696666666667	7.80682	8.21866
12 h after light	7.79755	7.58873	7.99375
4 h after dark	7.369529999999999	7.25915	7.43425
8 h after dark	7.245833333333334	7.02579	7.38068
12 h after dark	7.44112	7.3534	7.5877