condition	mean	min	max
4 h after light	15.253	15.0184	15.4876
8 h after light	10.3198	10.0884	10.5512
12 h after light	8.006665	7.21878	8.79455
4 h after dark	11.046665	9.85593	12.2374
8 h after dark	11.744800000000001	11.2277	12.2619
12 h after dark	15.44665	15.2446	15.6487