condition	mean	min	max
4 h after light	4539.0	4539.0	4539.0
8 h after light	4434.35	4223.8	4644.9
12 h after light	4606.85	4439.1	4774.6
4 h after dark	4203.6	3696.1	4711.1
8 h after dark	3759.75	3423.5	4096.0
12 h after dark	3467.7	3106.0	3829.4