condition	mean	min	max
4 h after light	8.753919999999999	8.701089999999999	8.83788
8 h after light	8.654673333333333	8.59036	8.71284
12 h after light	8.79115	8.76989	8.828330000000001
4 h after dark	8.60093	8.52721	8.66398
8 h after dark	8.679016666666667	8.57156	8.74726
12 h after dark	8.558776666666667	8.5165	8.6138