condition	mean	min	max
4 h after light	13.7	13.7	13.7
8 h after light	2.85	1.3	4.4
12 h after light	2.5500000000000003	0.7	4.4
4 h after dark	20.5	10.2	30.8
8 h after dark	6.95	3.6	10.3
12 h after dark	18.15	15.4	20.9