condition	mean	min	max
4 h after light	4.2	4.2	4.2
8 h after light	20.9	7.3	34.5
12 h after light	6.45	3.4	9.5
4 h after dark	5.7	3.7	7.7
8 h after dark	4.3	2.8	5.8
12 h after dark	4.85	3.5	6.2