condition mean min max 4 h after light 11.188928 10.843911 11.533945 8 h after light 10.118557 9.766803 10.470311 12 h after light 10.3931815 9.699606 11.086757 4 h after dark 10.4458085 9.999889 10.891728 8 h after dark 9.6149635 9.530321 9.699606 12 h after dark 8.882255 8.882255 8.882255