condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	6.5	5.6	7.4
12 h after light	3.3499999999999996	2.8	3.9
4 h after dark	7.4	5.9	8.9
8 h after dark	16.299999999999997	11.7	20.9
12 h after dark	9.25	5.5	13.0