condition	mean	min	max
4 h after light	2.2	2.2	2.2
8 h after light	21.5	19.6	23.4
12 h after light	16.55	13.3	19.8
4 h after dark	3.6500000000000004	2.4	4.9
8 h after dark	12.6	10.7	14.5
12 h after dark	2.35	1.6	3.1