condition	mean	min	max
4 h after light	3.8168300000000004	2.25609	5.37757
8 h after light	6.82879	6.35633	7.30125
12 h after light	10.569575	8.79615	12.343
4 h after dark	13.6958	12.8972	15.1205
8 h after dark	7.68437	6.78314	8.14062
12 h after dark	8.315996666666667	8.05593	8.77319