condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	18.6	16.9	20.3
12 h after light	5.7	5.4	6.0
4 h after dark	4.55	3.1	6.0
8 h after dark	4.85	2.3	7.4
12 h after dark	27.45	2.3	52.6