condition	mean	min	max
4 h after light	7.8	7.8	7.8
8 h after light	4.25	3.6	4.9
12 h after light	3.4	2.5	4.3
4 h after dark	26.0	3.6	48.4
8 h after dark	5.7	3.1	8.3
12 h after dark	5.15	2.8	7.5