condition mean min max 4 h after light 0.5173135 0.514329 0.520298 8 h after light 0.1049905 0.0 0.209981 12 h after light 0.8530775 0.680345 1.02581 4 h after dark 1.2452014999999999 0.687703 1.8027 8 h after dark 2.47709 1.33977 3.61441 12 h after dark 1.1376975 0.221175 2.05422