condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	3.0	1.5	4.5
12 h after light	2.95	2.6	3.3
4 h after dark	23.75	17.7	29.8
8 h after dark	43.0	29.8	56.2
12 h after dark	23.2	23.2	23.2