condition mean min max 2 h after light 2.70224 1.21083 4.1687 6 h after light 2.6605600000000003 1.99505 3.20136 10 h after light 2.9387583333333334 1.70204 3.70988 14 h after light 3.311735 2.54423 4.30866 18 h after light 2.571765 1.79102 3.09341 2 h after dark 2.50221 1.47682 3.58954