condition mean min max 4 h after light 71.869885 70.513629 73.226141 8 h after light 73.1477445 65.97798 80.317509 12 h after light 74.2823055 67.638511 80.9261 4 h after dark 117.6560015 80.9261 154.385903 8 h after dark 96.2246005 81.576681 110.87252 12 h after dark 76.002922 76.002922 76.002922