condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02276 0.0 0.04552 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