condition mean min max 0 h after light 0.0296107 0.0 0.0592214 4 h after light 0.03011735 0.0 0.0602347 8 h after light 0.0300882 0.0 0.0601764 4 h after dark 0.0291444 0.0 0.0582888 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0