condition mean min max 0 h after light 4.299635 3.02209 5.57718 2 h after light 15.93345 14.7834 17.0835 4 h after light 39.41575 27.5075 51.324 8 h after light 61.84205 54.1719 69.5122 12 h after light 48.0648 45.8313 50.2983 2 h after dark 9.915465 5.33363 14.4973 4 h after dark 8.639785 7.32088 9.95869 8 h after dark 4.405195 4.12754 4.68285 12 h after dark 2.140515 1.84338 2.43765