condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	13.5	9.9	17.1
12 h after light	29.6	18.8	40.4
4 h after dark	23.65	14.3	33.0
8 h after dark	18.15	9.0	27.3
12 h after dark	2.25	1.8	2.7