condition mean min max 4 h after light 3.3834073333333334 3.311571 3.476926 8 h after light 3.3967716666666665 1.513558 5.141629 12 h after light 7.06087 5.830248 9.204282000000001 16 h after light 5.665993 3.9011190000000004 6.554774 4 h after dark 4.881512666666667 2.836334 8.577209 8 h after dark 9.892532666666666 9.654364 10.23473