condition mean min max 4 h after light 6.52439 5.73438 7.3144 8 h after light 3.993715 3.84446 4.14297 12 h after light 1.8652549999999999 1.79932 1.93119 4 h after dark 2.566543333333333 1.80858 3.12167 8 h after dark 3.4278333333333335 3.01209 3.82866 12 h after dark 5.79442 5.42012 6.06368