condition	mean	min	max
4 h after light	646.9	646.9	646.9
8 h after light	585.05	553.2	616.9
12 h after light	616.5	565.4	667.6
4 h after dark	519.45	516.1	522.8
8 h after dark	445.95	404.2	487.7
12 h after dark	467.7	461.7	473.7