condition mean min max 4 h after light 3513.861354 2959.379064 4068.343644 8 h after light 3074.9173065 2531.155134 3618.679479 12 h after light 3421.8627880000004 2952.570442 3891.155134 4 h after dark 2988.6630825 2883.828851 3093.497314 8 h after dark 2022.999386 1551.310705 2494.688067 12 h after dark 3273.24478 3273.24478 3273.24478