condition	mean	min	max
4 h after light	5.9	5.9	5.9
8 h after light	14.25	2.7	25.8
12 h after light	5.15	5.0	5.3
4 h after dark	10.85	7.0	14.7
8 h after dark	5.3	3.9	6.7
12 h after dark	5.9	4.8	7.0