condition mean min max 0 h after light 1.916325 1.90205 1.9306 2 h after light 2.31001 1.95241 2.66761 4 h after light 3.99716 3.35601 4.63831 8 h after light 4.312125 3.70414 4.92011 12 h after light 16.6311 16.2651 16.9971 2 h after dark 12.3638 12.1968 12.5308 4 h after dark 7.562155 7.15579 7.96852 8 h after dark 5.97633 4.58437 7.36829 12 h after dark 2.200075 1.67369 2.72646