condition	mean	min	max
4 h after light	3.4	3.4	3.4
8 h after light	2.0	1.8	2.2
12 h after light	23.950000000000003	12.3	35.6
4 h after dark	4.0	3.4	4.6
8 h after dark	3.35	3.1	3.6
12 h after dark	2.95	2.8	3.1