condition	mean	min	max
4 h after light	3.1	3.1	3.1
8 h after light	19.5	2.8	36.2
12 h after light	12.9	3.0	22.8
4 h after dark	23.25	1.3	45.2
8 h after dark	4.45	1.8	7.1
12 h after dark	3.95	2.1	5.8