condition mean min max 4 h after light 4.400355 3.2299 5.57081 8 h after light 1.5436275 0.735715 2.35154 12 h after light 5.238885 5.14415 5.33362 4 h after dark 3.71096 0.0 6.05103 8 h after dark 3.229276666666667 0.0 7.53712 12 h after dark 8.947103333333335 5.9081 14.919