condition	mean	min	max
4 h after light	7.956483333333333	7.859439999999999	8.05587
8 h after light	8.286766666666667	8.13936	8.410810000000001
12 h after light	7.28277	7.091260000000001	7.408519999999999
4 h after dark	7.138023333333333	7.0133600000000005	7.28919
8 h after dark	8.072009999999999	7.84087	8.26344
12 h after dark	8.924133333333334	8.76786	9.04238