condition mean min max 4 h after light 108.8974125 79.10451 138.690315 8 h after light 105.795751 104.193105 107.398397 12 h after light 169.57203700000002 164.770518 174.373556 4 h after dark 194.587602 38.055928 351.119276 8 h after dark 94.067611 45.761531 142.373691 12 h after dark 214.712393 214.712393 214.712393