condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.5576966666666666 0.0 1.67309 12 h after light 0.4221433333333333 0.0 1.26643 3 h after dark 0.0 0.0 0.0 6 h after dark 1.820388 0.959294 3.21075 9 h after dark 0.9089933333333333 0.0 1.64346 12 h after dark 0.0 0.0 0.0