condition mean min max 3 h after light 0.3131457 0.0924471 0.597033 6 h after light 0.1879189 0.0824407 0.295009 9 h after light 0.238032 0.122792 0.309932 12 h after light 0.3366000333333333 0.0746031 0.615723 3 h after dark 4.176323333333333 3.58418 4.98427 6 h after dark 2.1304499999999997 1.95421 2.33986 9 h after dark 1.295676 0.868148 1.91332 12 h after dark 0.5775283333333333 0.224125 0.885698