condition	mean	min	max
4 h after light	550.6	550.6	550.6
8 h after light	605.45	592.7	618.2
12 h after light	542.45	489.9	595.0
4 h after dark	392.25	306.1	478.4
8 h after dark	357.45	339.5	375.4
12 h after dark	381.1	298.7	463.5