condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0627595 0.0618655 0.0636535 4 h after dark 0.0 0.0 0.0 8 h after dark 0.061845449999999996 0.0615859 0.062105 12 h after dark 0.061767550000000004 0.0610874 0.0624477