condition	mean	min	max
4 h after light	5.9	5.9	5.9
8 h after light	3.4	2.9	3.9
12 h after light	17.65	5.5	29.8
4 h after dark	8.2	2.0	14.4
8 h after dark	19.95	6.4	33.5
12 h after dark	9.05	8.8	9.3