condition mean min max 3 h after light 1.4439956666666667 0.902057 2.29869 6 h after light 3.064163333333333 2.01807 4.29701 9 h after light 6.09746 4.58099 8.69531 12 h after light 4.1287525 1.61255 5.22676 3 h after dark 3.51134 1.83487 4.40685 6 h after dark 3.0655200000000002 2.23422 4.69378 9 h after dark 2.373266666666667 1.35081 2.90083 12 h after dark 1.883005 1.73753 2.02848