condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	12.6	1.3	23.9
12 h after light	9.0	3.3	14.7
4 h after dark	18.55	1.4	35.7
8 h after dark	32.2	31.5	32.9
12 h after dark	5.25	1.6	8.9