condition	mean	min	max
4 h after light	6.6	6.6	6.6
8 h after light	3.0	1.7	4.3
12 h after light	30.25	3.6	56.9
4 h after dark	4.55	4.3	4.8
8 h after dark	4.3	2.8	5.8
12 h after dark	4.0	3.9	4.1