condition	mean	min	max
4 h after light	5.969203333333333	5.799869999999999	6.23909
8 h after light	5.85503	5.75514	6.013730000000001
12 h after light	5.81733	5.73244	5.92594
4 h after dark	5.943233333333334	5.80357	6.16038
8 h after dark	5.816316666666667	5.68968	6.05958
12 h after dark	5.79421	5.62824	6.09973