condition	mean	min	max
4 h after light	6.9	6.9	6.9
8 h after light	2.0	1.1	2.9
12 h after light	12.2	4.5	19.9
4 h after dark	2.95	1.6	4.3
8 h after dark	29.9	26.8	33.0
12 h after dark	1.2000000000000002	1.1	1.3