condition mean min max 3 h after light 1.092978 0.409134 1.54869 6 h after light 0.7290153333333333 0.583759 0.906971 9 h after light 1.779125 0.548655 2.615 12 h after light 2.1858543333333333 0.792393 3.67605 3 h after dark 3.32812 2.97209 3.65322 6 h after dark 1.860941 0.955873 3.5699 9 h after dark 1.3912946666666666 0.614732 2.5806 12 h after dark 1.336545 0.198378 3.0238