condition	mean	min	max
4 h after light	6.47924	5.55251	7.40597
8 h after light	8.18721	7.5985	8.77592
12 h after light	9.47712	9.39996	9.55428
4 h after dark	8.037053333333333	7.73613	8.39835
8 h after dark	5.36782	5.08902	5.86279
12 h after dark	7.31985	6.64852	7.91465