condition mean min max 4 h after light 0.01575505 0.0 0.0315101 8 h after light 0.05904525 0.056203 0.0618875 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0