condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.30712866666666666 0.0 0.921386 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0