condition mean min max 4 h after light 5.496 5.33871 5.70036 8 h after light 5.353149999999999 5.14115 5.53966 12 h after light 5.590676666666667 5.29319 5.97358 4 h after dark 5.282056666666667 5.04453 5.42628 8 h after dark 5.46894 5.34793 5.63477 12 h after dark 5.355436666666667 4.990069999999999 5.58654