condition mean min max 0 h after light 7.402935 7.40157 7.4043 2 h after light 7.541625 7.22427 7.85898 4 h after light 8.31208 8.29477 8.32939 8 h after light 6.998575 5.71325 8.2839 12 h after light 12.62245 11.1686 14.0763 2 h after dark 9.316845 8.07659 10.5571 4 h after dark 6.829079999999999 6.18457 7.47359 8 h after dark 5.09907 4.4615 5.73664 12 h after dark 5.313045 4.8865 5.73959