condition mean min max 4 h after light 14.0930305 13.608175 14.577886 8 h after light 15.357069 15.085837 15.628301 12 h after light 17.7505145 16.757823 18.743206 4 h after dark 16.0069995 16.0 16.013999 8 h after dark 15.628301 15.628301 15.628301 12 h after dark 15.073386 15.073386 15.073386