condition	mean	min	max
0 h after light	6.1863850000000005	4.11936	8.25341
4 h after light	3.4524800000000004	2.70764	4.19732
8 h after light	16.498199999999997	13.9775	19.0189
4 h after dark	16.2096	13.5391	18.8801
8 h after dark	11.529195	8.18249	14.8759
12 h after dark	7.4374649999999995	5.4851	9.38983