condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	2.75	1.9	3.6
12 h after light	9.7	6.5	12.9
4 h after dark	3.3499999999999996	3.3	3.4
8 h after dark	30.049999999999997	27.7	32.4
12 h after dark	3.0	2.9	3.1