condition mean min max 4 h after light 0.253657 0.0 0.507314 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 0.5855144999999999 0.436318 0.734711