condition	mean	min	max
4 h after light	8.028316666666667	7.85905	8.1338
8 h after light	7.971853333333334	7.9356100000000005	8.00044
12 h after light	8.018113333333334	7.987769999999999	8.05086
4 h after dark	8.119093333333334	8.0639	8.17256
8 h after dark	8.081890000000001	7.68443	8.32496
12 h after dark	8.426350000000001	8.391010000000001	8.455160000000001