condition	mean	min	max
4 h after light	4583.2	4583.2	4583.2
8 h after light	4269.75	4229.1	4310.4
12 h after light	4079.0	3952.3	4205.7
4 h after dark	3785.25	3779.1	3791.4
8 h after dark	4084.2	3972.4	4196.0
12 h after dark	4033.1	3969.3	4096.9