condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	3.9	1.8	6.0
12 h after light	3.8	3.1	4.5
4 h after dark	33.65	32.4	34.9
8 h after dark	2.5	1.8	3.2
12 h after dark	4.6	2.0	7.2