condition	mean	min	max
4 h after light	14.990549999999999	14.4716	15.5095
8 h after light	17.8196	16.7752	18.864
12 h after light	16.281799999999997	16.2415	16.3221
4 h after dark	18.28485	18.2212	18.3485
8 h after dark	19.25395	19.2161	19.2918
12 h after dark	19.51565	19.0629	19.9684