condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.038875 0.0 0.07775 12 h after light 0.0226513 0.0 0.0453026 4 h after dark 0.03921723333333334 0.0 0.063947 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0