condition mean min max 0 h after light 0.318349 0.212485 0.424213 4 h after light 0.7819505 0.627377 0.936524 8 h after light 0.632571 0.215912 1.04923 4 h after dark 1.2914975 0.979595 1.6034 8 h after dark 0.8748144999999999 0.696329 1.0533 12 h after dark 0.700709 0.564858 0.83656