condition	mean	min	max
4 h after light	3.1	3.1	3.1
8 h after light	10.4	1.2	19.6
12 h after light	4.65	3.9	5.4
4 h after dark	17.95	3.8	32.1
8 h after dark	6.3	4.8	7.8
12 h after dark	2.85	1.7	4.0