condition mean min max 4 h after light 0.002955375 0.0 0.00591075 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0036687 0.0 0.0110061