condition	mean	min	max
4 h after light	5.9	5.9	5.9
8 h after light	11.35	10.5	12.2
12 h after light	24.85	18.3	31.4
4 h after dark	5.75	5.0	6.5
8 h after dark	10.55	9.4	11.7
12 h after dark	7.25	7.2	7.3