condition mean min max 4 h after light 4.660583333333333 4.50408 4.8979 8 h after light 4.660316666666667 4.47375 4.93746 12 h after light 4.4283166666666665 4.32152 4.55841 4 h after dark 4.65167 4.55799 4.817880000000001 8 h after dark 4.83151 4.80809 4.8524 12 h after dark 5.06135 4.81909 5.32556