condition mean min max 0 h after light 5.062385000000001 5.04689 5.07788 4 h after light 4.04421 3.66619 4.42223 8 h after light 5.41855 5.20192 5.63518 4 h after dark 11.272245 9.92159 12.6229 8 h after dark 13.1862 12.1958 14.1766 12 h after dark 7.0606100000000005 6.73891 7.38231