condition	mean	min	max
4 h after light	4.02408	3.57459	4.47357
8 h after light	5.71866	5.42698	6.01034
12 h after light	5.87317	5.32156	6.42478
4 h after dark	13.32275	13.0537	13.5918
8 h after dark	9.462025	9.23985	9.6842
12 h after dark	7.51345	7.0904	7.9365