condition	mean	min	max
4 h after light	523.9	523.9	523.9
8 h after light	523.95	324.3	723.6
12 h after light	501.6	428.0	575.2
4 h after dark	493.25	421.4	565.1
8 h after dark	524.9	501.7	548.1
12 h after dark	525.1	452.0	598.2