condition	mean	min	max
4 h after light	5.1	5.1	5.1
8 h after light	5.65	3.4	7.9
12 h after light	9.95	9.0	10.9
4 h after dark	3.0	2.9	3.1
8 h after dark	18.7	7.7	29.7
12 h after dark	6.6	6.2	7.0