condition	mean	min	max
4 h after light	8.08029	7.70055	8.46003
8 h after light	9.28153	9.25274	9.31032
12 h after light	9.534805	9.04991	10.0197
4 h after dark	15.62865	15.0377	16.2196
8 h after dark	13.01315	12.7471	13.2792
12 h after dark	11.29265	11.2721	11.3132