condition mean min max 3 h after light 7.8792825 4.34052 16.1156 7 h after light 7.982976666666667 3.17138 11.6789 11 h after light 8.386225 4.20974 13.1864 2 h after dark 9.533100833333334 5.48394 15.7332 6 h after dark 9.013855 5.85048 13.9469 10 h after dark 7.5512875 4.3668 10.3562