condition	mean	min	max
4 h after light	2.8	2.8	2.8
8 h after light	5.1	2.7	7.5
12 h after light	1.8	1.6	2.0
4 h after dark	13.7	1.7	25.7
8 h after dark	2.8	2.2	3.4
12 h after dark	4.35	4.0	4.7